Regional Migration Forecast: 25 September – 2 October 2015

NOTE: Check out our new Traffic Reports, above!

Winter Wren, © Ryan Schain.

Continental Summary

The West will see light to moderate flights, particularly in more northern reaches, featuring Eared Grebe, Cooper’s Hawk, Red-tailed Hawk, Say’s Phoebe, Townsend’s Warbler, Brewer’s Blackbird, and Lincoln’s Sparrow, while moderate to very heavy mid to late week flights featuring Turkey Vulture, Wilson’s Snipe, Northern Flicker, Blue Jay, Black-and-white Warbler, Pine Warbler, Eastern Meadowlark, Indigo Bunting, and Field Sparrow come to the East.

Wondering what species are migrating through right now? Check out our analysis for the past 7 days.

[animation name=”forecast-25-september-2-october-2015″]

Arrows show wind speed and direction (arrow points in the direction to which wind is blowing) 100 m above ground level. Areas with southerly winds are colored red; northerly winds colored blue. Accumulated precipitation (in 6 hour intervals) is green, outlined by white. Broadly speaking, areas of the map in blue will experience conditions that are favorable for migration, and areas where blue and green (and red and blue) intersect and overlap may experience migrant concentrations and fallouts as migrants interact with precipitation.

We use data collected by eBird users help make more accurate forecasts. If you enjoy the predictions contained in these posts, please consider submitting your own bird sightings to eBird to even further improve the content. Every observation counts, whether it be a single bird at a feeder in your backyard, or an entire day spent in a national park. To get started with eBird, head on over to the site!

Need a review of our definitions for regions, species on the move, and migration amounts? Please visit this link.

Quick Links to Regions

Upper Midwest and Northeast	Gulf Coast and Southeast
Great Plains	West

Upper Midwest and Northeast

Scattered and local moderate flights will be apparent across the region from the weekend through the early part of the work week as primarily southerly flow and high pressure continues to dominate. Although a disturbance passes off the Atlantic coast on Monday and Tuesday, bringing some potential for higher intensity coastal flights, a frontal boundary moving through the Upper Midwest is the primary instrument of change. Following this passage, moderate to very heavy flights will occur, first on Tuesday in the Upper Midwest and Great Lakes and then on Wednesday for most of the remainder of the region. Although southerly flow builds behind this passage event, some portions of the region, most notably along the coast, will continue to see moderate to heavy movements through the end of the week.

Field Sparrow, © Ian Davies

Species on the Move

[expand title=”Beginning Arrivals %(%span style=’font-size: 10px; vertical-align: super;’%)%%(%a href=’https://birdcast.org/news/definitions-species-arrivals-regions-and-migration-amounts/#definitions’ target=’_blank’%)%What is this?%(%/a%)%%(%/span%)%” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving[attr style=”color:green”],Rapid Migrant Influx[attr style=”color:green”],Peak,Rapid Migrant Departure,Last Migrants Depart
Northern Harrier,**,8/1,9/26,10/20,11/10,11/27
Wilson’s Snipe,*,8/6,10/1,10/16,11/2,11/19
Northern Shoveler,**,8/9,10/15,11/10,12/1,12/16
Northern Pintail,**,9/1,10/3,10/31,11/20,12/11
Great Cormorant,*,9/3,11/12,After Dec 31,-,-
Song Sparrow,NA,9/8,10/10,10/20,11/1,-
American Wigeon,**,9/9,10/5,11/1,11/23,12/19
Eastern Bluebird,***,9/9,9/25,10/19,11/11,11/29
American Robin,***,9/11,9/25,10/13,11/9,11/26
Cackling Goose,*,9/12,10/1,12/8,-,-
Pied-billed Grebe,***,9/12,10/10,10/31,11/22,12/11
Winter Wren,***,9/14,9/28,10/17,10/31,11/12
Orange-crowned Warbler,**,9/14,9/25,10/10,10/25,11/5
Nelson’s Sparrow,*,9/14,9/25,10/10,10/25,11/4
Dunlin,**,9/15,10/9,10/31,11/20,12/6
Brown Creeper,***,9/15,9/28,10/17,10/30,11/9
Saltmarsh Sparrow,NA,9/15,10/10,10/20,11/5,11/15
Ruby-crowned Kinglet,****!,9/16,9/28,10/14,10/30,11/11
Yellow-rumped Warbler,****!,9/16,9/27,10/13,10/28,11/9
Swamp Sparrow,****!,9/16,9/28,10/14,10/30,11/12
White-throated Sparrow,****!,9/16,9/29,10/19,11/2,11/13
Le Conte’s Sparrow,*,9/17,9/29,10/15,10/31,11/12
Eastern Meadowlark,**,9/17,9/29,10/16,11/2,11/17
Snow Goose,*,9/18,11/21,12/26,-,-
Golden-crowned Kinglet,****!,9/18,9/30,10/18,11/2,11/15
Chipping Sparrow,***,9/18,9/27,10/9,10/30,11/13
Rusty Blackbird,**,9/18,10/3,10/23,11/10,11/25
American Black Duck,***,9/19,10/15,11/28,12/14,-
White-crowned Sparrow,****!,9/19,9/30,10/15,10/30,11/10
Hermit Thrush,***,9/20,10/3,10/19,11/5,11/17
Field Sparrow,***,9/21,10/2,10/16,11/3,11/15
Red-winged Blackbird,***,9/21,10/3,10/19,11/7,11/23
Purple Finch,***,9/21,10/6,10/24,11/11,11/25
Surf Scoter,**,9/23,10/11,11/8,11/26,12/8
Vesper Sparrow,*,9/24,10/6,10/21,11/7,11/18
Pine Siskin,***,9/24,10/9,10/29,11/14,11/27
American Coot,***,9/26,10/14,11/6,11/26,12/20
Greater White-fronted Goose,*,9/27,10/13,After Dec 31,-,-
American Woodcock,*,9/27,10/12,10/26,11/13,11/25
Brant,**,9/28,10/11,11/3,-,-
Dark-eyed Junco,****!,9/28,10/14,11/2,-,-
Ruddy Duck,***,9/30,10/17,11/10,11/30,-
Fox Sparrow,***,9/30,10/17,11/8,11/26,12/10
White-winged Scoter,**,10/1,10/19,11/10,11/26,12/8
Common Grackle,***,10/1,10/8,10/18,11/8,11/23
Redhead,*,10/2,10/18,11/12,-,-
Horned Lark,*,10/2,10/25,After Dec 31,-,-

[/table]
[/expand]

[expand title=”Peaking Arrivals” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx[attr style=”color:green”],Peak[attr style=”color:green”],Rapid Migrant Departure,Last Migrants Depart
Green-winged Teal,**,8-Aug,22-Aug,27-Oct,22-Nov,10-Dec
Bald Eagle,*,Before July 1,2-Sep,6-Nov,-,-
Merlin,**,19-Aug,4-Sep,28-Sep,26-Oct,16-Nov
Turkey Vulture,***,16-Aug,5-Sep,28-Sep,31-Oct,25-Nov
Blue Jay,****!,25-Aug,8-Sep,28-Sep,16-Oct,-
Northern Flicker,***,28-Aug,9-Sep,26-Sep,13-Oct,30-Oct
Red-breasted Nuthatch,**,9-Aug,9-Sep,2-Oct,-,-
Sharp-shinned Hawk,***,26-Aug,10-Sep,7-Oct,8-Nov,22-Nov
Cooper’s Hawk,***,3-Aug,10-Sep,7-Oct,2-Nov,16-Nov
American Kestrel,**,27-Aug,10-Sep,28-Sep,19-Oct,5-Nov
Lapland Longspur,*,3-Sep,15-Sep,10-Nov,-,-
Eastern Phoebe,***,4-Sep,16-Sep,30-Sep,20-Oct,3-Nov
Clay-colored Sparrow,*,5-Sep,17-Sep,4-Oct,21-Oct,3-Nov
Palm Warbler,***,4-Sep,18-Sep,5-Oct,22-Oct,4-Nov
Blue-headed Vireo,***,6-Sep,19-Sep,4-Oct,21-Oct,2-Nov
Lincoln’s Sparrow,***,7-Sep,19-Sep,5-Oct,22-Oct,2-Nov
Peregrine Falcon,**,6-Sep,20-Sep,5-Oct,22-Oct,3-Nov
Sedge Wren,*,1-Sep,20-Sep,5-Oct,24-Oct,1-Nov
Marsh Wren,***,1-Sep,20-Sep,5-Oct,24-Oct,-
American Pipit,**,5-Sep,21-Sep,22-Oct,17-Nov,4-Dec
Yellow-bellied Sapsucker,***,10-Sep,22-Sep,7-Oct,21-Oct,31-Oct
Harris’s Sparrow,*,8-Sep,22-Sep,12-Oct,28-Oct,10-Nov
Eastern Towhee,***,12-Sep,23-Sep,6-Oct,25-Oct,7-Nov
Savannah Sparrow,***,10-Sep,24-Sep,12-Oct,29-Oct,12-Nov
Eastern Bluebird,***,9-Sep,25-Sep,19-Oct,11-Nov,29-Nov
American Robin,***,11-Sep,25-Sep,13-Oct,9-Nov,26-Nov
Orange-crowned Warbler,**,14-Sep,25-Sep,10-Oct,25-Oct,5-Nov
Nelson’s Sparrow,*,14-Sep,25-Sep,10-Oct,25-Oct,4-Nov
Northern Harrier,**,1-Aug,26-Sep,20-Oct,10-Nov,27-Nov
Yellow-rumped Warbler,****!,16-Sep,27-Sep,13-Oct,28-Oct,9-Nov
Chipping Sparrow,***,18-Sep,27-Sep,9-Oct,30-Oct,13-Nov
Brown Creeper,***,15-Sep,28-Sep,17-Oct,30-Oct,9-Nov
Winter Wren,***,14-Sep,28-Sep,17-Oct,31-Oct,12-Nov
Ruby-crowned Kinglet,****!,16-Sep,28-Sep,14-Oct,30-Oct,11-Nov
Swamp Sparrow,***,16-Sep,28-Sep,14-Oct,30-Oct,12-Nov
Le Conte’s Sparrow,*,17-Sep,29-Sep,15-Oct,31-Oct,12-Nov
White-throated Sparrow,****!,16-Sep,29-Sep,19-Oct,2-Nov,13-Nov
Eastern Meadowlark,**,17-Sep,29-Sep,16-Oct,2-Nov,17-Nov
Golden-crowned Kinglet,***,18-Sep,30-Sep,18-Oct,2-Nov,15-Nov
White-crowned Sparrow,***,19-Sep,30-Sep,15-Oct,30-Oct,10-Nov
Cackling Goose,*,12-Sep,1-Oct,8-Dec,-,-
Wilson’s Snipe,*,6-Aug,1-Oct,16-Oct,2-Nov,19-Nov
Field Sparrow,***,21-Sep,2-Oct,16-Oct,3-Nov,15-Nov
[/table]
[/expand]

[expand title=”Beginning Departures” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak[attr style=”color:green”],Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart
Yellow-billed Cuckoo,*,-,-,Before July 1,3-Oct,17-Oct
Killdeer,***,-,Before July 1,2-Aug,28-Oct,26-Nov
Yellow-crowned Night-Heron,*,-,Before July 1,3-Aug,8-Oct,28-Oct
Chimney Swift,***,-,-,5-Aug,10-Oct,25-Oct
Snowy Egret,**,-,Before July 1,7-Aug,15-Oct,3-Nov
Great Blue Heron,***,-,Before July 1,10-Aug,19-Oct,8-Dec
Tricolored Heron,*,14-Jul,26-Jul,11-Aug,7-Oct,22-Oct
Great Egret,***,Before July 1,11-Jul,12-Aug,19-Oct,6-Nov
Laughing Gull,**,Before July 1,15-Jul,13-Aug,12-Nov,5-Dec
Osprey,***,-,Before July 1,16-Aug,15-Oct,8-Nov
Cedar Waxwing,***,-,Before July 1,17-Aug,27-Sep,26-Nov
Wood Duck,**,Before July 1,6-Jul,18-Aug,31-Oct,21-Nov
Royal Tern,*,12-Jul,31-Jul,25-Aug,10-Nov,25-Nov
Double-crested Cormorant,***,-,-,5-Sep,14-Nov,7-Dec
Red-eyed Vireo,***,15-Aug,25-Aug,7-Sep,28-Sep,13-Oct
Yellow-throated Vireo,**,16-Aug,25-Aug,8-Sep,26-Sep,8-Oct
Blackburnian Warbler,***,10-Aug,23-Aug,8-Sep,27-Sep,9-Oct
Blue-winged Teal,**,4-Aug,18-Aug,9-Sep,22-Oct,6-Nov
Hooded Warbler,*,17-Aug,26-Aug,9-Sep,27-Sep,10-Oct
Chestnut-sided Warbler,***,11-Aug,24-Aug,9-Sep,27-Sep,9-Oct
Prairie Warbler,*,4-Aug,21-Aug,9-Sep,30-Sep,13-Oct
American Golden-Plover,*,11-Aug,23-Aug,10-Sep,27-Sep,13-Oct
White-eyed Vireo,***,17-Aug,27-Aug,10-Sep,28-Sep,10-Oct
Northern Waterthrush,**,28-Jul,24-Aug,10-Sep,30-Sep,12-Oct
Wood Thrush,**,23-Aug,30-Aug,11-Sep,28-Sep,15-Oct
American Redstart,***,12-Aug,27-Aug,11-Sep,30-Sep,12-Oct
Wilson’s Warbler,***,15-Aug,26-Aug,11-Sep,28-Sep,9-Oct
Yellow-throated Warbler,*,19-Aug,29-Aug,12-Sep,30-Sep,12-Oct
Red-headed Woodpecker,*,22-Aug,1-Sep,13-Sep,2-Oct,14-Oct
Ovenbird,***,11-Aug,26-Aug,13-Sep,2-Oct,14-Oct
Black-and-white Warbler,***,10-Aug,28-Aug,13-Sep,2-Oct,14-Oct
House Wren,***,28-Aug,4-Sep,15-Sep,7-Oct,23-Oct
Scarlet Tanager,***,23-Aug,2-Sep,15-Sep,3-Oct,15-Oct
Tennessee Warbler,***,16-Aug,30-Aug,16-Sep,4-Oct,18-Oct
Bay-breasted Warbler,***,22-Aug,2-Sep,16-Sep,2-Oct,13-Oct
Rose-breasted Grosbeak,***,26-Aug,5-Sep,16-Sep,3-Oct,14-Oct
Philadelphia Vireo,***,22-Aug,3-Sep,17-Sep,2-Oct,12-Oct
Gray Catbird,***,28-Aug,6-Sep,17-Sep,9-Oct,24-Oct
Magnolia Warbler,***,20-Aug,1-Sep,17-Sep,3-Oct,15-Oct
Broad-winged Hawk,***,26-Aug,5-Sep,18-Sep,3-Oct,14-Oct
Common Yellowthroat,***,25-Aug,3-Sep,18-Sep,9-Oct,24-Oct
Swainson’s Thrush,***,24-Aug,4-Sep,19-Sep,5-Oct,16-Oct
Connecticut Warbler,*,25-Aug,5-Sep,19-Sep,5-Oct,16-Oct
Cape May Warbler,***,22-Aug,4-Sep,19-Sep,5-Oct,17-Oct
Belted Kingfisher,***,Before July 1,27-Jul,20-Sep,14-Oct,-
Northern Parula,***,25-Aug,6-Sep,20-Sep,6-Oct,18-Oct
Black-throated Green Warbler,***,24-Aug,5-Sep,20-Sep,7-Oct,19-Oct
Sora,*,12-Aug,28-Aug,21-Sep,16-Oct,30-Oct
Brown Thrasher,***,27-Aug,7-Sep,21-Sep,7-Oct,20-Oct
Nashville Warbler,***,22-Aug,5-Sep,21-Sep,9-Oct,23-Oct
Red-shouldered Hawk,*,24-Aug,5-Sep,22-Sep,13-Nov,22-Nov
Pine Warbler,***,22-Aug,5-Sep,22-Sep,11-Oct,25-Oct
Gray-cheeked Thrush,**,29-Aug,8-Sep,23-Sep,8-Oct,19-Oct
Blackpoll Warbler,***,27-Aug,7-Sep,23-Sep,9-Oct,21-Oct
Black-throated Blue Warbler,***,22-Aug,6-Sep,23-Sep,12-Oct,26-Oct
Indigo Bunting,***,9-Sep,14-Sep,24-Sep,11-Oct,23-Oct
Northern Flicker,***,28-Aug,9-Sep,26-Sep,13-Oct,30-Oct
Turkey Vulture,***,16-Aug,5-Sep,28-Sep,31-Oct,25-Nov
American Kestrel,**,27-Aug,10-Sep,28-Sep,19-Oct,5-Nov
Merlin,**,19-Aug,4-Sep,28-Sep,26-Oct,16-Nov
Blue Jay,***,25-Aug,8-Sep,28-Sep,16-Oct,-
Eastern Phoebe,***,4-Sep,16-Sep,30-Sep,20-Oct,3-Nov
[/table]
[/expand]

[expand title=”Ending Departures” tag=”h3″]
[table sort=”,,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak,Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart[attr style=”color:green”]
Northern Rough-winged Swallow,**,-,-,Before July 1,5-Aug,24-Oct
Glossy Ibis,*,-,Before July 1,23-Jul,17-Aug,26-Sep
Yellow Warbler,***,-,-,Before July 1,18-Aug,7-Oct
Little Blue Heron,*,Before July 1,21-Jul,9-Aug,26-Aug,20-Oct
Common Tern,***,-,Before July 1,1-Aug,26-Aug,4-Oct
Black-crowned Night-Heron,*,-,Before July 1,31-Jul,27-Aug,30-Oct
Clapper Rail,*,-,Before July 1,1-Aug,28-Aug,29-Oct
Tree Swallow,***,-,-,Before July 1,30-Aug,10-Nov
American Oystercatcher,*,-,Before July 1,29-Jul,30-Aug,25-Sep
Blue Grosbeak,*,Before July 1,18-Jul,5-Aug,31-Aug,17-Oct
Black-bellied Plover,*,20-Jul,1-Aug,20-Aug,3-Sep,1-Dec
Semipalmated Plover,***,1-Jul,25-Jul,17-Aug,8-Sep,4-Oct
Solitary Sandpiper,***,Before July 1,11-Jul,13-Aug,8-Sep,7-Oct
Lesser Yellowlegs,***,-,Before July 1,18-Aug,10-Sep,25-Sep
Semipalmated Sandpiper,***,1-Jul,13-Jul,16-Aug,10-Sep,28-Sep
Greater Yellowlegs,**,-,Before July 1,20-Aug,11-Sep,28-Nov
Stilt Sandpiper,**,Before July 1,15-Jul,21-Aug,11-Sep,25-Sep
Least Sandpiper,***,-,Before July 1,18-Aug,11-Sep,25-Sep
Common Gallinule,*,-,Before July 1,26-Jul,12-Sep,2-Nov
White-rumped Sandpiper,*,22-Jul,6-Aug,26-Aug,13-Sep,28-Sep
Red-necked Phalarope,*,28-Jul,11-Aug,27-Aug,13-Sep,27-Sep
Caspian Tern,**,Before July 1,17-Jul,20-Aug,14-Sep,20-Oct
Common Nighthawk,***,7-Aug,17-Aug,31-Aug,14-Sep,25-Sep
Great Crested Flycatcher,***,12-Aug,17-Aug,25-Aug,14-Sep,26-Sep
Blue-winged Warbler,**,1-Aug,13-Aug,28-Aug,14-Sep,27-Sep
Green Heron,***,-,Before July 1,13-Aug,15-Sep,7-Oct
Red Knot,*,-,Before July 1,28-Aug,15-Sep,28-Sep
Baird’s Sandpiper,**,6-Aug,17-Aug,30-Aug,15-Sep,25-Sep
Olive-sided Flycatcher,*,4-Aug,16-Aug,30-Aug,15-Sep,27-Sep
Blue-gray Gnatcatcher,***,4-Aug,14-Aug,25-Aug,15-Sep,29-Sep
Canada Warbler,***,5-Aug,16-Aug,30-Aug,15-Sep,26-Sep
Buff-breasted Sandpiper,**,10-Aug,20-Aug,3-Sep,17-Sep,28-Sep
Western Sandpiper,*,Before July 1,15-Jul,24-Aug,17-Sep,1-Oct
Kentucky Warbler,*,15-Aug,21-Aug,31-Aug,17-Sep,29-Sep
Whimbrel,*,Before July 1,9-Jul,1-Aug,18-Sep,4-Oct
Forster’s Tern,*,-,Before July 1,17-Aug,18-Sep,30-Nov
Eastern Whip-poor-will,*,16-Aug,21-Aug,30-Aug,19-Sep,2-Oct
Warbling Vireo,***,13-Aug,21-Aug,3-Sep,19-Sep,30-Sep
Bobolink,**,5-Aug,16-Aug,31-Aug,19-Sep,15-Oct
Ruby-throated Hummingbird,***,30-Jul,14-Aug,28-Aug,21-Sep,5-Oct
Yellow-bellied Flycatcher,*,9-Aug,20-Aug,5-Sep,21-Sep,4-Oct
Mourning Warbler,*,4-Aug,15-Aug,1-Sep,21-Sep,7-Oct
Eastern Wood-Pewee,***,5-Aug,16-Aug,29-Aug,22-Sep,9-Oct
Least Flycatcher,***,7-Aug,18-Aug,3-Sep,22-Sep,5-Oct
Veery,***,13-Aug,22-Aug,5-Sep,22-Sep,5-Oct
Black Skimmer,*,-,Before July 1,23-Jul,22-Sep,21-Oct
Sanderling,**,-,Before July 1,1-Sep,23-Sep,6-Oct
Golden-winged Warbler,*,11-Aug,22-Aug,7-Sep,23-Sep,5-Oct
Pectoral Sandpiper,*,Before July 1,18-Jul,16-Aug,24-Sep,20-Nov
Yellow-throated Vireo,***,16-Aug,25-Aug,8-Sep,26-Sep,8-Oct
American Golden-Plover,**,11-Aug,23-Aug,10-Sep,27-Sep,13-Oct
Cedar Waxwing,***,-,Before July 1,17-Aug,27-Sep,26-Nov
Hooded Warbler,*,17-Aug,26-Aug,9-Sep,27-Sep,10-Oct
Blackburnian Warbler,***,10-Aug,23-Aug,8-Sep,27-Sep,9-Oct
Chestnut-sided Warbler,***,11-Aug,24-Aug,9-Sep,27-Sep,9-Oct
White-eyed Vireo,***,17-Aug,27-Aug,10-Sep,28-Sep,10-Oct
Red-eyed Vireo,***,15-Aug,25-Aug,7-Sep,28-Sep,13-Oct
Wood Thrush,**,23-Aug,30-Aug,11-Sep,28-Sep,15-Oct
Wilson’s Warbler,***,15-Aug,26-Aug,11-Sep,28-Sep,9-Oct
Northern Waterthrush,***,28-Jul,24-Aug,10-Sep,30-Sep,12-Oct
American Redstart,***,12-Aug,27-Aug,11-Sep,30-Sep,12-Oct
Yellow-throated Warbler,*,19-Aug,29-Aug,12-Sep,30-Sep,12-Oct
Prairie Warbler,**,4-Aug,21-Aug,9-Sep,30-Sep,13-Oct
Red-headed Woodpecker,**,22-Aug,1-Sep,13-Sep,2-Oct,14-Oct
Philadelphia Vireo,***,22-Aug,3-Sep,17-Sep,2-Oct,12-Oct
Ovenbird,***,11-Aug,26-Aug,13-Sep,2-Oct,14-Oct
Black-and-white Warbler,***,10-Aug,28-Aug,13-Sep,2-Oct,14-Oct
Bay-breasted Warbler,***,22-Aug,2-Sep,16-Sep,2-Oct,13-Oct
[/table]
[/expand]

Gulf Coast and Southeast

Moderate to locally heavy flights will begin the weekend in many areas. However, these intensities will not last, as unfavorable conditions building gradually into the region quite the migration scene substantially. Changes come by Wednesday, when more favorable northerly winds and slightly cooler temperatures return, bringing a new pulse of moderate to very heavy flights from Texas through the southern Appalachians. The intensity of these flights continues through the remainder of the period, but in an increasingly localized area of the Southeast. Some areas of the Florida Panhandle north and east through the Carolinas may continue to experience very heavy flights during these movements (offering potentially good opportunities for moon watching!).

Pine Warbler, © Luke Seitz.

[expand title=”Beginning Arrivals %(%span style=’font-size: 10px; vertical-align: super;’%)%%(%a href=’https://birdcast.org/news/definitions-species-arrivals-regions-and-migration-amounts/#definitions’ target=’_blank’%)%What is this?%(%/a%)%%(%/span%)%” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving[attr style=”color:green”],Rapid Migrant Influx[attr style=”color:green”],Peak,Rapid Migrant Departure,Last Migrants Depart
Great Blue Heron,**,7/27,10/21,11/19,-,-
Black Vulture,**,8/25,10/15,After Dec 31,-,-
American Avocet,*,9/1,10/20,11/5,11/24,12/8
Blue-headed Vireo,*,9/1,10/18,12/18,After Dec 31,-
American Kestrel,***,9/9,10/7,11/14,-,-
American Bittern,*,9/12,10/14,11/25,-,-
Brown-headed Cowbird,**,9/12,9/26,10/25,11/11,11/22
Blackpoll Warbler,*,9/13,9/25,10/10,10/26,11/6
Northern Flicker,****!,9/14,9/29,10/18,11/2,-
Indigo Bunting,***,9/15,9/25,10/9,10/26,11/8
Palm Warbler,****!,9/15,9/29,10/19,11/2,11/12
Red-breasted Nuthatch,*,9/15,10/6,11/3,-,-
Marsh Wren,**,9/19,10/8,10/29,-,-
Wilson’s Snipe,**,9/20,10/19,12/15,-,-
House Wren,***,9/21,10/8,10/27,11/11,-
Eastern Phoebe,****!,9/22,10/11,10/31,11/12,-
Tree Swallow,***,9/22,10/8,10/30,-,-
Lincoln’s Sparrow,***,9/24,10/10,10/29,-,-
Red-winged Blackbird,***,9/24,10/13,11/7,11/19,11/30
Double-crested Cormorant,***,9/25,10/17,11/21,11/27,12/1
Nelson’s Sparrow,*,9/25,10/8,10/25,-,-
Common Grackle,***,9/26,10/11,10/25,11/10,11/20
Northern Harrier,***,9/26,10/21,11/17,-,-
Painted Bunting,*,9/26,10/3,10/13,10/29,11/8
Yellow-bellied Sapsucker,***,9/26,10/10,12/17,After Dec 31,-
Herring Gull,**,9/29,12/30,After Dec 31,-,-
Saltmarsh Sparrow,*,9/29,10/12,12/11,After Dec 31,-
Sedge Wren,**,9/30,10/14,12/18,-,-
Ruby-crowned Kinglet,****!,10/1,10/16,12/15,-,-
Eastern Meadowlark,***,10/2,10/16,11/3,11/14,-
Pied-billed Grebe,***,10/2,10/23,11/25,-,-

[/table]
[/expand]

[expand title=”Peaking Arrivals” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx[attr style=”color:green”],Peak[attr style=”color:green”],Rapid Migrant Departure,Last Migrants Depart
Black-bellied Plover,*,7/23,8/6,11/2,-,-
Caspian Tern,*,7/26,8/13,10/26,11/23,-
Blue-winged Teal,**,8/8,8/25,11/2,-,-
Black-billed Cuckoo,*,8/17,9/5,9/26,10/18,11/1
Black-and-white Warbler,***,8/18,9/6,9/26,10/18,11/5
Pine Warbler,***,8/13,9/6,10/3,-,-
Yellow-throated Warbler,**,7/31,9/6,9/26,10/19,11/4
Broad-winged Hawk,**,8/28,9/9,9/25,10/13,11/1
Ovenbird,***,8/26,9/9,9/27,10/16,11/2
Sora,*,8/29,9/10,12/18,-,-
American Redstart,***,8/29,9/11,9/28,10/16,10/30
Cooper’s Hawk,**,7/29,9/11,10/24,11/11,11/22
Cape May Warbler,**,8/31,9/12,9/29,10/16,10/31
Scarlet Tanager,***,8/31,9/12,9/27,10/15,10/28
Nashville Warbler,***,8/30,9/13,10/4,10/26,11/15
Belted Kingfisher,***,8/12,9/14,10/26,-,-
Magnolia Warbler,***,9/1,9/14,10/1,10/19,11/1
Swainson’s Thrush,***,9/3,9/14,9/29,10/15,10/27
Clay-colored Sparrow,*,9/2,9/15,10/4,10/21,11/4
Eastern Towhee,**,9/7,9/15,10/21,11/8,11/22
Tennessee Warbler,***,8/31,9/15,10/3,10/22,11/5
Common Yellowthroat,***,9/2,9/16,10/5,10/23,11/6
Wood Thrush,**,9/3,9/16,10/2,10/19,10/31
Gray-cheeked Thrush,**,9/6,9/17,10/2,10/19,10/30
Merlin,**,9/3,9/17,10/11,11/1,11/18
Sharp-shinned Hawk,**,9/2,9/17,10/28,11/12,11/22
Bald Eagle,*,8/21,9/18,After Dec 31,-,-
Brown Thrasher,***,9/3,9/18,10/5,10/24,11/7
Rose-breasted Grosbeak,***,9/7,9/19,10/4,10/21,11/1
Black-throated Blue Warbler,***,9/5,9/20,10/6,10/25,11/7
Northern Mockingbird,***,9/6,9/20,10/12,-,-
Scissor-tailed Flycatcher,**,9/6,9/20,10/5,11/1,11/19
Bay-breasted Warbler,*,9/7,9/21,10/7,10/25,11/6
Black-throated Green Warbler,***,9/7,9/22,10/8,10/27,11/9
Peregrine Falcon,**,9/9,9/22,10/8,10/23,11/3
Gray Catbird,***,9/12,9/24,10/10,10/26,11/7
Blackpoll Warbler,*,9/13,9/25,10/10,10/26,11/6
Indigo Bunting,***,9/15,9/25,10/9,10/26,11/8
Brown-headed Cowbird,**,9/12,9/26,10/25,11/11,11/22
Northern Flicker,***,9/14,9/29,10/18,11/2,-
Palm Warbler,***,9/15,9/29,10/19,11/2,11/12

[/table]
[/expand]

[expand title=”Ending Departures” tag=”h3″]
[table sort=”,,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak,Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart[attr style=”color:green”]
Cliff Swallow,**,-,-,Before July 1,8-Jul,7-Oct
Least Bittern,*,-,-,Before July 1,1-Aug,18-Oct
Blue Grosbeak,**,-,-,Before July 1,26-Aug,1-Nov
Gull-billed Tern,*,-,Before July 1,23-Jul,7-Sep,29-Sep
Barn Swallow,***,-,Before July 1,8-Aug,8-Sep,5-Nov
Sandwich Tern,*,Before July 1,28-Jul,19-Aug,8-Sep,9-Dec
Wilson’s Plover,*,Before July 1,27-Jul,15-Aug,8-Sep,26-Sep
Semipalmated Plover,**,14-Jul,30-Jul,21-Aug,10-Sep,2-Oct
Louisiana Waterthrush,*,-,-,Before July 1,11-Sep,29-Sep
Orchard Oriole,**,-,-,13-Aug,12-Sep,30-Sep
Spotted Sandpiper,***,Before July 1,19-Jul,17-Aug,12-Sep,3-Oct
Wilson’s Phalarope,*,19-Jul,2-Aug,22-Aug,12-Sep,3-Oct
Black Tern,***,20-Jul,8-Aug,24-Aug,13-Sep,27-Sep
Solitary Sandpiper,**,-,Before July 1,17-Aug,13-Sep,5-Oct
Cerulean Warbler,*,1-Aug,13-Aug,28-Aug,14-Sep,26-Sep
Short-billed Dowitcher,*,Before July 1,3-Jul,27-Aug,14-Sep,25-Sep
Stilt Sandpiper,*,5-Jul,21-Jul,15-Aug,14-Sep,21-Nov
Bank Swallow,**,6-Aug,17-Aug,1-Sep,16-Sep,28-Sep
Black-necked Stilt,*,14-Jul,27-Jul,11-Aug,16-Sep,28-Nov
Gray Kingbird,*,-,-,14-Aug,16-Sep,11-Oct
Semipalmated Sandpiper,**,Before July 1,15-Jul,23-Aug,16-Sep,15-Oct
Buff-breasted Sandpiper,*,31-Jul,14-Aug,30-Aug,17-Sep,30-Sep
Bullock’s Oriole,*,13-Aug,21-Aug,2-Sep,18-Sep,30-Sep
Common Nighthawk,***,10-Aug,18-Aug,28-Aug,19-Sep,4-Oct
Alder Flycatcher,*,4-Aug,17-Aug,3-Sep,20-Sep,4-Oct
American Golden-Plover,*,10-Aug,21-Aug,5-Sep,20-Sep,1-Oct
Black-chinned Hummingbird,**,-,-,Before July 1,20-Sep,10-Oct
Brown-crested Flycatcher,*,16-Aug,23-Aug,1-Sep,20-Sep,2-Oct
Great Crested Flycatcher,***,11-Aug,20-Aug,1-Sep,20-Sep,5-Oct
Green Heron,***,-,-,Before July 1,20-Sep,9-Oct
Western Sandpiper,**,Before July 1,11-Jul,1-Sep,20-Sep,2-Oct
Eastern Kingbird,***,-,-,4-Jul,21-Sep,7-Oct
Pectoral Sandpiper,**,Before July 1,26-Jul,18-Aug,22-Sep,8-Oct
White-rumped Sandpiper,*,8-Aug,20-Aug,5-Sep,22-Sep,5-Oct
Bell’s Vireo,*,8-Aug,18-Aug,29-Aug,23-Sep,10-Oct
Olive-sided Flycatcher,**,6-Aug,19-Aug,5-Sep,23-Sep,7-Oct
Prothonotary Warbler,**,2-Aug,11-Aug,28-Aug,23-Sep,9-Oct
Baird’s Sandpiper,*,8-Jul,28-Jul,20-Aug,24-Sep,9-Oct
Common Tern,*,Before July 1,20-Jul,22-Aug,24-Sep,9-Nov
Dickcissel,*,10-Aug,19-Aug,2-Sep,24-Sep,16-Oct
Kentucky Warbler,*,4-Aug,15-Aug,2-Sep,24-Sep,9-Oct
Yellow-crowned Night-Heron,*,-,-,Before July 1,24-Sep,21-Oct
Willow Flycatcher,*,5-Aug,19-Aug,5-Sep,25-Sep,9-Oct
Yellow-breasted Chat,**,13-Aug,23-Aug,7-Sep,25-Sep,9-Oct
Canada Warbler,**,13-Aug,24-Aug,9-Sep,26-Sep,9-Oct
Cave Swallow,*,-,-,1-Sep,26-Sep,26-Nov
Mourning Warbler,**,15-Aug,27-Aug,12-Sep,28-Sep,10-Oct
Yellow Warbler,***,29-Jul,16-Aug,7-Sep,29-Sep,15-Oct
Baltimore Oriole,***,18-Aug,30-Aug,14-Sep,30-Sep,10-Oct
Blue-gray Gnatcatcher,***,4-Aug,25-Aug,13-Sep,1-Oct,14-Oct
Least Flycatcher,***,15-Aug,30-Aug,14-Sep,1-Oct,13-Oct
[/table]
[/expand]

Great Plains

A quiet weekend of light to locally moderate movements yields to much more exciting movements by Monday night. A frontal boundary pushing across the region will bring moderate to very heavy flights in the northern Plains on Monday night, then more broadly to the region on Tuesday night. Following this intense and extensive pulse, conditions will be at best locally marginal on some nights for the remainder of the period. Where and when these conditions occur will determine where and when movements of light to moderate intensity follow.

Le Conte’s Sparrow, © Luke Seitz.

Species on the Move

[expand title=”Beginning Arrivals %(%span style=’font-size: 10px; vertical-align: super;’%)%%(%a href=’https://birdcast.org/news/definitions-species-arrivals-regions-and-migration-amounts/#definitions’ target=’_blank’%)%What is this?%(%/a%)%%(%/span%)%” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving[attr style=”color:green”],Rapid Migrant Influx[attr style=”color:green”],Peak,Rapid Migrant Departure,Last Migrants Depart
Ring-billed Gull,***,16-Jul,23-Oct,10-Nov,29-Nov,-
Wilson’s Snipe,*,7-Aug,3-Oct,18-Oct,4-Nov,16-Nov
Pine Siskin,*,23-Aug,11-Oct,28-Dec,-,-
Purple Finch,*,31-Aug,9-Dec,After Dec 31,-,-
Sharp-shinned Hawk,***,31-Aug,25-Sep,10-Oct,-,-
Yellow-bellied Sapsucker,*,7-Sep,7-Dec,After Dec 31,-,-
Double-crested Cormorant,***,8-Sep,25-Sep,22-Oct,24-Nov,17-Dec
Red-tailed Hawk,***,8-Sep,28-Sep,29-Oct,14-Nov,25-Nov
American Coot,***,11-Sep,3-Oct,29-Oct,21-Nov,10-Dec
Yellow-rumped Warbler,****!,12-Sep,25-Sep,13-Oct,29-Oct,10-Nov
White-throated Sparrow,***,13-Sep,28-Sep,18-Oct,3-Nov,16-Nov
Savannah Sparrow,***,14-Sep,27-Sep,13-Oct,30-Oct,12-Nov
Hermit Thrush,**,15-Sep,28-Sep,15-Oct,30-Oct,-
Sprague’s Pipit,*,15-Sep,27-Sep,11-Oct,28-Oct,8-Nov
Sedge Wren,***,16-Sep,26-Sep,10-Oct,26-Oct,6-Nov
White-crowned Sparrow,***,16-Sep,30-Sep,18-Oct,3-Nov,15-Nov
Winter Wren,*,16-Sep,11-Oct,3-Nov,-,-
American Pipit,***,17-Sep,4-Oct,24-Oct,12-Nov,26-Nov
Eastern Meadowlark,***,17-Sep,1-Oct,19-Oct,5-Nov,17-Nov
Nelson’s Sparrow,**,17-Sep,27-Sep,10-Oct,25-Oct,4-Nov
Field Sparrow,***,18-Sep,30-Sep,18-Oct,6-Nov,17-Nov
Harris’s Sparrow,***,18-Sep,6-Oct,2-Nov,-,-
Swamp Sparrow,***,18-Sep,30-Sep,17-Oct,2-Nov,13-Nov
Le Conte’s Sparrow,***,21-Sep,1-Oct,17-Oct,1-Nov,12-Nov
Song Sparrow,***,21-Sep,6-Oct,25-Oct,9-Nov,19-Nov
Northern Harrier,***,24-Sep,11-Oct,29-Oct,12-Nov,21-Nov
Dark-eyed Junco,****!,26-Sep,13-Oct,29-Dec,-,-
Surf Scoter,*,26-Sep,10-Oct,28-Oct,15-Nov,30-Nov
Brown Creeper,***,27-Sep,14-Oct,20-Dec,-,-
Golden-crowned Kinglet,***,27-Sep,12-Oct,15-Dec,After Dec 31,-
Tundra Swan,**,28-Sep,15-Oct,30-Oct,18-Nov,30-Nov
Herring Gull,***,30-Sep,22-Oct,28-Nov,After Dec 31,-
Fox Sparrow,***,2-Oct,14-Oct,30-Oct,12-Nov,24-Nov
[/table]
[/expand]

[expand title=”Peaking Arrivals” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx[attr style=”color:green”],Peak[attr style=”color:green”],Rapid Migrant Departure,Last Migrants Depart
Black-bellied Plover,*,20-Jul,30-Jul,29-Sep,15-Nov,28-Nov
Greater Yellowlegs,*,-,1-Aug,26-Oct,13-Nov,25-Nov
Cooper’s Hawk,**,8-Aug,2-Sep,25-Sep,20-Oct,10-Nov
American Golden-Plover,*,6-Aug,3-Sep,27-Sep,23-Oct,19-Nov
Red-shouldered Hawk,*,11-Aug,5-Sep,30-Sep,26-Oct,-
Merlin,*,16-Aug,6-Sep,26-Oct,-,-
Sora,*,18-Aug,6-Sep,29-Sep,22-Oct,5-Nov
American White Pelican,**,22-Aug,9-Sep,16-Oct,18-Nov,9-Dec
Palm Warbler,*,31-Aug,11-Sep,27-Sep,13-Oct,25-Oct
Pied-billed Grebe,***,30-Aug,12-Sep,31-Oct,20-Nov,6-Dec
Northern Flicker,***,30-Aug,13-Sep,7-Oct,26-Oct,5-Nov
Common Yellowthroat,***,1-Sep,15-Sep,25-Sep,9-Oct,14-Oct
Indigo Bunting,*,1-Sep,15-Sep,1-Oct,10-Oct,21-Oct
Canada Goose,**,-,16-Sep,25-Nov,-,-
Franklin’s Gull,***,1-Sep,16-Sep,13-Oct,10-Nov,25-Nov
Scissor-tailed Flycatcher,**,6-Sep,16-Sep,28-Sep,19-Oct,2-Nov
Orange-crowned Warbler,***,3-Sep,17-Sep,3-Oct,21-Oct,2-Nov
Ruby-crowned Kinglet,***,6-Sep,21-Sep,10-Oct,27-Oct,10-Nov
Western Meadowlark,***,11-Sep,21-Sep,8-Oct,3-Nov,19-Nov
Marsh Wren,**,9-Sep,22-Sep,9-Oct,26-Oct,9-Nov
Red-winged Blackbird,***,9-Sep,22-Sep,24-Oct,13-Nov,27-Nov
Common Grackle,***,12-Sep,23-Sep,8-Oct,31-Oct,16-Nov
Lincoln’s Sparrow,***,8-Sep,23-Sep,10-Oct,28-Oct,10-Nov
Vesper Sparrow,***,9-Sep,23-Sep,8-Oct,26-Oct,8-Nov
Double-crested Cormorant,***,8-Sep,25-Sep,22-Oct,24-Nov,17-Dec
Sharp-shinned Hawk,***,31-Aug,25-Sep,10-Oct,-,-
Yellow-rumped Warbler,****!,12-Sep,25-Sep,13-Oct,29-Oct,10-Nov
Sedge Wren,**,16-Sep,26-Sep,10-Oct,26-Oct,6-Nov
Nelson’s Sparrow,*,17-Sep,27-Sep,10-Oct,25-Oct,4-Nov
Savannah Sparrow,***,14-Sep,27-Sep,13-Oct,30-Oct,12-Nov
Sprague’s Pipit,*,15-Sep,27-Sep,11-Oct,28-Oct,8-Nov
Hermit Thrush,*,15-Sep,28-Sep,15-Oct,30-Oct,-
Red-tailed Hawk,***,8-Sep,28-Sep,29-Oct,14-Nov,25-Nov
White-throated Sparrow,***,13-Sep,28-Sep,18-Oct,3-Nov,16-Nov
Field Sparrow,***,18-Sep,30-Sep,18-Oct,6-Nov,17-Nov
Swamp Sparrow,***,18-Sep,30-Sep,17-Oct,2-Nov,13-Nov
White-crowned Sparrow,***,16-Sep,30-Sep,18-Oct,3-Nov,15-Nov
Eastern Meadowlark,***,17-Sep,1-Oct,19-Oct,5-Nov,17-Nov
Le Conte’s Sparrow,***,21-Sep,1-Oct,17-Oct,1-Nov,12-Nov
[/table]
[/expand]

[expand title=”Beginning Departures” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak[attr style=”color:green”],Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart
Killdeer,***,Before July 1,4-Jul,2-Aug,3-Nov,28-Nov
Cattle Egret,*,-,-,5-Aug,30-Sep,3-Nov
Chimney Swift,***,-,25-Jul,10-Aug,10-Oct,25-Oct
Snowy Egret,**,Before July 1,5-Jul,18-Aug,2-Oct,24-Oct
Wood Duck,**,Before July 1,1-Jul,19-Aug,27-Oct,19-Nov
Chipping Sparrow,***,-,-,1-Sep,31-Oct,14-Nov
Common Tern,*,-,-,1-Sep,7-Oct,1-Nov
Mourning Dove,***,-,-,1-Sep,6-Oct,26-Oct
Rose-breasted Grosbeak,**,12-Aug,22-Aug,4-Sep,25-Sep,10-Oct
White-faced Ibis,*,Before July 1,14-Aug,4-Sep,1-Oct,27-Oct
Black-crowned Night-Heron,*,-,-,5-Sep,26-Sep,12-Oct
Say’s Phoebe,**,12-Aug,25-Aug,7-Sep,28-Sep,11-Oct
Swainson’s Hawk,***,28-Jul,21-Aug,7-Sep,4-Oct,21-Oct
Magnolia Warbler,*,13-Aug,24-Aug,9-Sep,25-Sep,7-Oct
Red-necked Phalarope,*,1-Jul,25-Aug,9-Sep,30-Sep,14-Oct
House Wren,***,25-Aug,1-Sep,10-Sep,3-Oct,19-Oct
Sanderling,*,1-Jul,28-Jul,10-Sep,3-Oct,21-Oct
Tennessee Warbler,**,7-Aug,22-Aug,10-Sep,30-Sep,16-Oct
White-eyed Vireo,**,19-Aug,28-Aug,10-Sep,29-Sep,11-Oct
Blackpoll Warbler,*,15-Aug,27-Aug,11-Sep,27-Sep,8-Oct
Brown Thrasher,***,19-Aug,30-Aug,11-Sep,30-Sep,12-Oct
Caspian Tern,*,1-Jul,15-Aug,11-Sep,30-Sep,13-Oct
Gray Catbird,***,18-Aug,30-Aug,11-Sep,1-Oct,14-Oct
Great Egret,***,-,15-Jul,11-Sep,16-Oct,10-Nov
Northern Parula,**,17-Aug,27-Aug,11-Sep,29-Sep,11-Oct
Philadelphia Vireo,*,15-Aug,27-Aug,12-Sep,29-Sep,10-Oct
Swainson’s Thrush,***,18-Aug,30-Aug,13-Sep,29-Sep,10-Oct
Yellow-headed Blackbird,***,15-Aug,5-Sep,15-Sep,30-Sep,12-Oct
Blue-headed Vireo,**,19-Aug,1-Sep,18-Sep,5-Oct,18-Oct
Blue-winged Teal,***,2-Aug,18-Aug,18-Sep,25-Oct,13-Nov
Summer Tanager,***,28-Aug,6-Sep,18-Sep,5-Oct,17-Oct
Black-throated Green Warbler,*,17-Aug,1-Sep,19-Sep,7-Oct,22-Oct
Peregrine Falcon,*,Before July 1,26-Jul,19-Sep,10-Oct,28-Oct
Broad-winged Hawk,*,28-Aug,7-Sep,20-Sep,7-Oct,19-Oct
Turkey Vulture,***,20-Aug,8-Sep,22-Sep,16-Oct,30-Oct
Eastern Phoebe,***,27-Aug,9-Sep,23-Sep,14-Oct,29-Oct
Nashville Warbler,***,24-Aug,6-Sep,23-Sep,10-Oct,24-Oct
Clay-colored Sparrow,***,20-Aug,3-Sep,24-Sep,16-Oct,31-Oct
Osprey,***,25-Aug,7-Sep,24-Sep,11-Oct,12-Nov
Common Yellowthroat,***,1-Sep,15-Sep,25-Sep,9-Oct,14-Oct
Cooper’s Hawk,**,8-Aug,2-Sep,25-Sep,20-Oct,10-Nov
American Golden-Plover,*,6-Aug,3-Sep,27-Sep,23-Oct,19-Nov
Palm Warbler,*,31-Aug,11-Sep,27-Sep,13-Oct,25-Oct
Scissor-tailed Flycatcher,***,6-Sep,16-Sep,28-Sep,19-Oct,2-Nov
Black-bellied Plover,*,20-Jul,30-Jul,29-Sep,15-Nov,28-Nov
Sora,*,18-Aug,6-Sep,29-Sep,22-Oct,5-Nov
Red-shouldered Hawk,*,11-Aug,5-Sep,30-Sep,26-Oct,-
Indigo Bunting,***,1-Sep,15-Sep,1-Oct,10-Oct,21-Oct
[/table]
[/expand]

[expand title=”Ending Departures” tag=”h3″]
[table sort=”,,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak,Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart[attr style=”color:green”]
Northern Rough-winged Swallow,**,-,-,Before July 1,15-Jul,19-Oct
Yellow-billed Cuckoo,***,-,-,Before July 1,22-Aug,4-Oct
Least Bittern,*,-,-,Before July 1,25-Aug,30-Sep
Pectoral Sandpiper,**,Before July 1,20-Jul,10-Aug,26-Aug,20-Oct
Yellow-crowned Night-Heron,*,-,Before July 1,31-Jul,26-Aug,5-Oct
Cliff Swallow,***,-,-,Before July 1,2-Sep,25-Sep
Short-billed Dowitcher,*,Before July 1,6-Jul,7-Aug,2-Sep,4-Oct
Tree Swallow,**,-,-,Before July 1,4-Sep,8-Nov
Marbled Godwit,*,-,-,Before July 1,8-Sep,2-Oct
Willet,*,-,-,Before July 1,8-Sep,5-Oct
Lark Sparrow,***,-,-,Before July 1,10-Sep,28-Sep
Baird’s Sandpiper,**,]+D11,10-Jul,13-Aug,11-Sep,3-Oct
Buff-breasted Sandpiper,*,23-Jul,3-Aug,21-Aug,12-Sep,29-Sep
Snowy Plover,*,-,-,Before July 1,12-Sep,3-Oct
Solitary Sandpiper,***,Before July 1,6-Jul,16-Aug,12-Sep,28-Sep
Spotted Sandpiper,***,Before July 1,6-Jul,7-Aug,12-Sep,1-Oct
Bank Swallow,***,Before July 1,5-Jul,12-Aug,13-Sep,29-Sep
Lark Bunting,**,-,-,17-Aug,13-Sep,30-Sep
Black Tern,***,Before July 1,5-Jul,17-Aug,14-Sep,2-Oct
Semipalmated Sandpiper,***,1-Jul,15-Jul,15-Aug,14-Sep,3-Oct
Blackburnian Warbler,*,3-Aug,15-Aug,30-Aug,15-Sep,27-Sep
Forster’s Tern,**,Before July 1,26-Jul,20-Aug,15-Sep,26-Oct
Great Crested Flycatcher,***,11-Aug,17-Aug,25-Aug,15-Sep,27-Sep
Northern Waterthrush,**,7-Aug,17-Aug,31-Aug,15-Sep,25-Sep
Stilt Sandpiper,**,Before July 1,8-Jul,26-Aug,15-Sep,30-Sep
Wilson’s Phalarope,***,-,Before July 1,21-Aug,15-Sep,2-Oct
Least Sandpiper,***,-,10-Jul,26-Aug,16-Sep,30-Sep
Little Blue Heron,**,-,10-Jul,24-Aug,16-Sep,2-Oct
Black-necked Stilt,*,-,-,7-Aug,17-Sep,4-Oct
Semipalmated Plover,**,1-Jul,21-Jul,19-Aug,17-Sep,11-Oct
Yellow Warbler,***,1-Aug,12-Aug,26-Aug,17-Sep,1-Oct
Yellow-bellied Flycatcher,*,6-Aug,17-Aug,1-Sep,17-Sep,28-Sep
Green Heron,***,Before July 1,2-Jul,11-Aug,18-Sep,10-Oct
Lesser Yellowlegs,**,-,Before July 1,21-Aug,18-Sep,15-Nov
Mourning Warbler,*,10-Aug,20-Aug,3-Sep,18-Sep,29-Sep
Olive-sided Flycatcher,***,9-Aug,19-Aug,2-Sep,18-Sep,29-Sep
Eastern Wood-Pewee,***,Before July 1,5-Aug,22-Aug,19-Sep,6-Oct
Red-eyed Vireo,***,11-Aug,19-Aug,31-Aug,19-Sep,2-Oct
American Redstart,***,10-Aug,20-Aug,3-Sep,20-Sep,2-Oct
Black-and-white Warbler,***,10-Aug,20-Aug,4-Sep,20-Sep,3-Oct
Chestnut-sided Warbler,**,11-Aug,21-Aug,5-Sep,20-Sep,2-Oct
Least Flycatcher,***,8-Aug,19-Aug,3-Sep,20-Sep,3-Oct
Ovenbird,**,10-Aug,20-Aug,4-Sep,20-Sep,2-Oct
Yellow-throated Vireo,**,11-Aug,20-Aug,2-Sep,20-Sep,2-Oct
Blue-gray Gnatcatcher,***,2-Aug,15-Aug,27-Aug,21-Sep,5-Oct
Ruby-throated Hummingbird,***,Before July 1,29-Jul,28-Aug,21-Sep,8-Oct
Warbling Vireo,***,10-Aug,6-Sep,12-Sep,21-Sep,3-Oct
Common Nighthawk,***,-,-,28-Aug,22-Sep,8-Oct
Red-headed Woodpecker,***,31-Jul,13-Aug,27-Aug,23-Sep,13-Oct
Yellow-breasted Chat,*,20-Aug,26-Aug,4-Sep,24-Sep,8-Oct
Magnolia Warbler,*,13-Aug,24-Aug,9-Sep,25-Sep,7-Oct
Rose-breasted Grosbeak,**,12-Aug,22-Aug,4-Sep,25-Sep,10-Oct
Black-crowned Night-Heron,*,-,-,5-Sep,26-Sep,12-Oct
Blackpoll Warbler,*,15-Aug,27-Aug,11-Sep,27-Sep,8-Oct
Say’s Phoebe,**,12-Aug,25-Aug,7-Sep,28-Sep,11-Oct
Northern Parula,**,17-Aug,27-Aug,11-Sep,29-Sep,11-Oct
Philadelphia Vireo,**,15-Aug,27-Aug,12-Sep,29-Sep,10-Oct
Swainson’s Thrush,***,18-Aug,30-Aug,13-Sep,29-Sep,10-Oct
White-eyed Vireo,**,19-Aug,28-Aug,10-Sep,29-Sep,11-Oct
Brown Thrasher,***,19-Aug,30-Aug,11-Sep,30-Sep,12-Oct
Caspian Tern,*,1-Jul,15-Aug,11-Sep,30-Sep,13-Oct
Cattle Egret,*,-,-,5-Aug,30-Sep,3-Nov
Red-necked Phalarope,*,1-Jul,25-Aug,9-Sep,30-Sep,14-Oct
Tennessee Warbler,**,7-Aug,22-Aug,10-Sep,30-Sep,16-Oct
Yellow-headed Blackbird,***,15-Aug,5-Sep,15-Sep,30-Sep,12-Oct
Gray Catbird,***,18-Aug,30-Aug,11-Sep,1-Oct,14-Oct
White-faced Ibis,*,Before July 1,14-Aug,4-Sep,1-Oct,27-Oct
Snowy Egret,**,Before July 1,5-Jul,18-Aug,2-Oct,24-Oct
[/table]
[/expand]

West

Moderate flights kick off the weekend from California north along the Pacific Coast and across the northern tier states. These will continue, and expand to additional areas of the Desert Southwest and the Rockies through Monday night. More marginal conditions, with less intense movements, follow on Tuesday and Wednesday. But moderate flights will return to many areas by Wednesday and Thursday nights, including in the Pacific Northwest and northern Rockies and California and the Great Basin, respectively.

Species on the Move

[expand title=”Beginning Arrivals %(%span style=’font-size: 10px; vertical-align: super;’%)%%(%a href=’https://birdcast.org/news/definitions-species-arrivals-regions-and-migration-amounts/#definitions’ target=’_blank’%)%What is this?%(%/a%)%%(%/span%)%” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving[attr style=”color:green”],Rapid Migrant Influx[attr style=”color:green”],Peak,Rapid Migrant Departure,Last Migrants Depart
Ring-billed Gull,**,Before July 1,11/2,11/22,12/5,-
Pied-billed Grebe,**,7/27,10/18,11/11,11/29,-
Northern Harrier,**,8/12,10/29,11/20,-,-
Marsh Wren,**,8/19,9/27,10/30,11/21,-
Red-necked Grebe,*,8/26,10/20,11/6,11/22,-
Eared Grebe,***,8/30,9/29,11/9,11/29,12/11
Yellow-rumped Warbler,***,9/2,9/26,10/17,10/29,11/8
American Wigeon,***,9/3,10/19,11/20,12/4,12/16
American Coot,***,9/5,10/13,11/17,12/5,-
American Robin,*,9/6,12/2,12/23,-,-
Northern Flicker,***,9/6,9/27,10/20,11/5,11/20
Western Meadowlark,***,9/10,9/27,10/22,11/8,12/6
Golden-crowned Sparrow,***,9/12,9/27,10/21,10/30,11/7
Palm Warbler,*,9/13,9/27,10/18,11/5,11/29
Varied Thrush,**,9/14,9/29,After Dec 31,-,-
Golden-crowned Kinglet,**,9/14,10/3,10/26,11/11,11/21
Magnolia Warbler,*,9/15,9/26,10/10,10/26,11/6
Ruby-crowned Kinglet,****!,9/15,10/3,12/16,-,-
Western Grebe,***,9/15,10/14,11/5,11/24,12/9
Chestnut-collared Longspur,*,9/17,10/3,10/25,11/12,11/30
White-throated Sparrow,**,9/17,10/3,10/25,-,-
Black-throated Blue Warbler,*,9/18,9/28,10/12,10/26,11/6
Cackling Goose,**,9/18,10/5,11/22,12/7,12/19
Harris’s Sparrow,*,9/18,10/14,After Dec 31,-,-
Red-throated Pipit,*,9/19,10/2,10/19,11/6,11/19
Ruddy Duck,***,9/19,10/13,11/14,-,-
White-winged Scoter,*,9/20,10/22,11/10,11/26,12/7
Dark-eyed Junco,***,9/21,10/9,12/16,After Dec 31,-
Hermit Thrush,***,9/21,10/5,10/28,11/7,11/15
Horned Grebe,***,9/21,10/18,11/11,11/26,12/6
Dunlin,**,9/22,10/11,11/6,11/24,12/8
Herring Gull,**,9/22,10/24,11/26,12/11,After Dec 31
Ring-necked Duck,***,9/24,10/17,12/7,-,-
Bald Eagle,**,9/28,10/22,After Dec 31,-,-
Eurasian Wigeon,*,9/28,10/24,After Dec 31,-,-
Surf Scoter,**,9/28,10/21,11/12,-,-
Swamp Sparrow,*,9/29,10/14,12/17,-,-
Northern Shrike,*,9/30,10/14,12/13,-,-
Common Merganser,*,10/1,11/1,12/15,-,-
Canada Goose,NA,10/1,11/1,11/25,-,-
Ferruginous Hawk,*,10/2,10/31,After Dec 31,-,-

[/table]
[/expand]

[expand title=”Peaking Arrivals” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx[attr style=”color:green”],Peak[attr style=”color:green”],Rapid Migrant Departure,Last Migrants Depart
California Gull,*,Before July 1,14-Jul,9-Nov,26-Nov,10-Dec
Black-bellied Plover,*,Before July 1,23-Jul,8-Oct,-,-
Black-throated Gray Warbler,*,30-Jul,13-Aug,30-Sep,22-Oct,4-Nov
Green-winged Teal,**,7-Aug,20-Aug,21-Nov,-,-
Northern Shoveler,***,5-Aug,20-Aug,22-Nov,-,-
Blue-winged Teal,*,6-Aug,21-Aug,28-Sep,24-Oct,8-Nov
Northern Pintail,**,9-Aug,22-Aug,19-Nov,-,-
Black-and-white Warbler,*,10-Aug,27-Aug,5-Oct,31-Oct,17-Nov
Savannah Sparrow,***,13-Aug,29-Aug,27-Sep,21-Oct,9-Nov
Townsend’s Warbler,***,12-Aug,30-Aug,30-Sep,27-Oct,10-Nov
Belted Kingfisher,**,15-Aug,5-Sep,27-Oct,10-Nov,-
Red-shouldered Hawk,**,19-Aug,6-Sep,3-Oct,23-Oct,-
Cooper’s Hawk,**,1-Aug,7-Sep,1-Oct,2-Nov,19-Nov
Blackburnian Warbler,*,25-Aug,8-Sep,28-Sep,17-Oct,7-Nov
Brewer’s Blackbird,**,23-Aug,8-Sep,28-Sep,16-Oct,10-Nov
Sharp-shinned Hawk,*,23-Aug,9-Sep,22-Oct,8-Nov,-
Red-winged Blackbird,**,24-Aug,11-Sep,10-Oct,31-Oct,21-Nov
Red-tailed Hawk,***,18-Aug,12-Sep,After Dec 31,-,-
Broad-winged Hawk,*,2-Sep,12-Sep,27-Sep,13-Oct,24-Oct
Lincoln’s Sparrow,***,30-Aug,13-Sep,5-Oct,22-Oct,8-Nov
Merlin,*,29-Aug,13-Sep,22-Dec,-,-
Say’s Phoebe,***,30-Aug,13-Sep,1-Oct,-,-
American Pipit,**,30-Aug,14-Sep,7-Nov,-,-
Prothonotary Warbler,*,28-Aug,18-Sep,4-Oct,21-Oct,1-Nov
Yellow-green Vireo,*,7-Sep,19-Sep,5-Oct,22-Oct,2-Nov
White-crowned Sparrow,****!,4-Sep,20-Sep,14-Oct,26-Oct,6-Nov
Greater White-fronted Goose,**,8-Sep,21-Sep,8-Oct,-,-
Red-naped Sapsucker,*,8-Sep,22-Sep,9-Oct,24-Oct,4-Nov
Fox Sparrow,***,9-Sep,24-Sep,19-Oct,-,-
Sandhill Crane,*,12-Sep,24-Sep,18-Nov,3-Dec,12-Dec
Sharp-tailed Sandpiper,*,12-Sep,24-Sep,8-Oct,24-Oct,4-Nov
Magnolia Warbler,*,15-Sep,26-Sep,10-Oct,26-Oct,6-Nov
Yellow-rumped Warbler,****!,2-Sep,26-Sep,17-Oct,29-Oct,8-Nov
Marsh Wren,*,19-Aug,27-Sep,30-Oct,21-Nov,-
Golden-crowned Sparrow,***,12-Sep,27-Sep,21-Oct,30-Oct,7-Nov
Northern Flicker,***,6-Sep,27-Sep,20-Oct,5-Nov,20-Nov
Palm Warbler,*,13-Sep,27-Sep,18-Oct,5-Nov,29-Nov
Western Meadowlark,**,10-Sep,27-Sep,22-Oct,8-Nov,6-Dec
Black-throated Blue Warbler,*,18-Sep,28-Sep,12-Oct,26-Oct,6-Nov
Varied Thrush,**,14-Sep,29-Sep,After Dec 31,-,-
Eared Grebe,***,30-Aug,29-Sep,9-Nov,29-Nov,11-Dec
Red-throated Pipit,*,19-Sep,2-Oct,19-Oct,6-Nov,19-Nov
[/table]
[/expand]

[expand title=”Beginning Departures” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak[attr style=”color:green”],Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart
Summer Tanager,*,-,-,27-Jul,3-Oct,15-Oct
Bell’s Vireo,*,-,Before July 1,28-Jul,26-Sep,12-Oct
Whimbrel,*,Before July 1,10-Jul,5-Aug,3-Oct,-
Western Wood-Pewee,***,-,-,7-Aug,26-Sep,12-Oct
Swainson’s Hawk,**,-,26-Jul,14-Aug,27-Sep,13-Oct
Barn Swallow,***,-,Before July 1,23-Aug,25-Sep,12-Oct
White-faced Ibis,**,Before July 1,4-Jul,26-Aug,25-Sep,16-Oct
American Avocet,*,-,Before July 1,31-Aug,28-Sep,20-Oct
American White Pelican,*,Before July 1,17-Aug,1-Sep,26-Sep,11-Dec
Red-breasted Nuthatch,*,29-Jul,10-Aug,2-Sep,28-Oct,14-Nov
Franklin’s Gull,*,Before July 1,1-Jul,3-Sep,3-Oct,1-Nov
Cinnamon Teal,*,31-Jul,16-Aug,5-Sep,28-Sep,14-Oct
Gray Flycatcher,*,9-Aug,22-Aug,5-Sep,25-Sep,7-Oct
Cassin’s Vireo,*,11-Aug,22-Aug,6-Sep,25-Sep,8-Oct
Western Tanager,***,15-Aug,25-Aug,7-Sep,28-Sep,12-Oct
Brewer’s Sparrow,**,6-Aug,21-Aug,8-Sep,28-Sep,11-Oct
Chipping Sparrow,**,7-Aug,20-Aug,8-Sep,11-Oct,5-Nov
Killdeer,**,4-Aug,19-Aug,8-Sep,30-Sep,20-Nov
Wilson’s Warbler,***,8-Aug,22-Aug,8-Sep,28-Sep,12-Oct
Yellow Warbler,***,5-Aug,19-Aug,8-Sep,3-Oct,21-Oct
House Wren,**,14-Aug,24-Aug,9-Sep,29-Sep,8-Nov
Warbling Vireo,***,14-Aug,25-Aug,9-Sep,29-Sep,13-Oct
Blue-gray Gnatcatcher,*,9-Aug,24-Aug,12-Sep,30-Sep,13-Oct
Pacific-slope Flycatcher,***,19-Aug,28-Aug,12-Sep,4-Oct,20-Oct
Black Turnstone,*,3-Jul,19-Jul,14-Sep,26-Nov,7-Dec
Green-tailed Towhee,**,21-Aug,1-Sep,14-Sep,1-Oct,12-Oct
Turkey Vulture,***,23-Aug,3-Sep,14-Sep,6-Oct,19-Oct
Elegant Tern,*,Before July 1,21-Jul,15-Sep,5-Oct,26-Nov
Vesper Sparrow,**,17-Aug,30-Aug,15-Sep,3-Oct,17-Oct
Heermann’s Gull,*,-,Before July 1,16-Sep,7-Oct,1-Dec
Common Tern,*,19-Aug,1-Sep,16-Sep,3-Oct,16-Oct
Common Yellowthroat,***,17-Aug,29-Aug,16-Sep,9-Oct,28-Oct
Vaux’s Swift,**,26-Aug,5-Sep,16-Sep,7-Oct,21-Oct
Clay-colored Sparrow,*,14-Aug,28-Aug,17-Sep,6-Oct,2-Nov
Red-throated Loon,*,25-Aug,5-Sep,20-Sep,28-Sep,2-Oct
Pectoral Sandpiper,**,17-Aug,1-Sep,20-Sep,11-Oct,28-Oct
Bobolink,*,25-Aug,6-Sep,22-Sep,8-Oct,21-Oct
Mountain Bluebird,*,6-Sep,12-Sep,22-Sep,15-Oct,29-Oct
Orange-crowned Warbler,***,12-Aug,2-Sep,22-Sep,12-Oct,29-Oct
Broad-winged Hawk,*,2-Sep,12-Sep,27-Sep,13-Oct,24-Oct
Savannah Sparrow,**,13-Aug,29-Aug,27-Sep,21-Oct,9-Nov
Brewer’s Blackbird,**,23-Aug,8-Sep,28-Sep,16-Oct,10-Nov
Black-throated Gray Warbler,**,30-Jul,13-Aug,30-Sep,22-Oct,4-Nov
Townsend’s Warbler,**,12-Aug,30-Aug,30-Sep,27-Oct,10-Nov
Cooper’s Hawk,*,1-Aug,7-Sep,1-Oct,2-Nov,19-Nov
[/table]
[/expand]

[expand title=”Ending Departures” tag=”h3″]
[table sort=”,,,,,asc” tablesorter=”true”]
Species,Noticeability[attr style=”color:orange”],Migrants Begin Arriving,Rapid Migrant Influx,Peak,Rapid Migrant Departure[attr style=”color:green”],Last Migrants Depart[attr style=”color:green”]
Black Swift,*,-,-,Before July 1,3-Jul,25-Sep
Violet-green Swallow,**,-,-,Before July 1,26-Jul,15-Oct
Lucy’s Warbler,*,-,-,Before July 1,27-Jul,16-Oct
Yellow-breasted Chat,*,-,-,Before July 1,28-Jul,29-Sep
Indigo Bunting,*,-,Before July 1,21-Jul,11-Aug,2-Oct
Black-headed Grosbeak,***,-,-,Before July 1,2-Sep,30-Sep
Broad-tailed Hummingbird,***,-,Before July 1,28-Jul,3-Sep,26-Sep
Mississippi Kite,*,-,Before July 1,4-Aug,6-Sep,1-Oct
Hermit Warbler,*,28-Jul,6-Aug,22-Aug,7-Sep,26-Oct
Ruddy Turnstone,*,Before July 1,13-Jul,21-Aug,8-Sep,5-Dec
Rufous Hummingbird,***,Before July 1,1-Jul,1-Aug,8-Sep,25-Sep
Lark Bunting,*,25-Jul,4-Aug,21-Aug,9-Sep,26-Sep
Northern Rough-winged Swallow,**,-,-,Before July 1,10-Sep,27-Sep
Western Kingbird,***,-,-,13-Jul,10-Sep,26-Sep
Wilson’s Phalarope,**,Before July 1,13-Jul,11-Aug,11-Sep,3-Oct
Bank Swallow,**,-,Before July 1,18-Aug,12-Sep,28-Sep
Black-chinned Hummingbird,***,Before July 1,16-Jul,9-Aug,13-Sep,4-Oct
Least Sandpiper,***,Before July 1,15-Jul,28-Aug,13-Sep,25-Sep
Greater Yellowlegs,*,Before July 1,10-Jul,30-Aug,14-Sep,11-Dec
Lesser Yellowlegs,*,Before July 1,9-Aug,26-Aug,14-Sep,20-Oct
Semipalmated Plover,***,Before July 1,13-Jul,26-Aug,14-Sep,28-Sep
Solitary Sandpiper,**,25-Jul,11-Aug,26-Aug,14-Sep,27-Sep
Baird’s Sandpiper,**,30-Jul,13-Aug,29-Aug,15-Sep,29-Sep
Red-headed Woodpecker,*,8-Aug,18-Aug,31-Aug,15-Sep,26-Sep
Stilt Sandpiper,*,Before July 1,17-Jul,31-Aug,15-Sep,27-Sep
Western Sandpiper,***,Before July 1,8-Jul,29-Aug,15-Sep,6-Oct
Blue Grosbeak,**,Before July 1,1-Jul,31-Jul,16-Sep,12-Oct
Buff-breasted Sandpiper,*,9-Aug,19-Aug,2-Sep,16-Sep,26-Sep
Osprey,**,4-Aug,14-Aug,26-Aug,16-Sep,18-Oct
Lazuli Bunting,**,5-Aug,11-Aug,20-Aug,17-Sep,10-Oct
Red-eyed Vireo,*,11-Aug,19-Aug,30-Aug,17-Sep,29-Sep
Black-necked Stilt,**,Before July 1,1-Jul,22-Aug,18-Sep,7-Oct
Gray Catbird,**,10-Aug,19-Aug,31-Aug,19-Sep,2-Oct
Lark Sparrow,**,21-Jul,1-Aug,19-Aug,19-Sep,5-Oct
Northern Waterthrush,*,9-Aug,20-Aug,4-Sep,19-Sep,3-Oct
Olive-sided Flycatcher,**,-,-,Before July 1,19-Sep,3-Oct
Red-necked Phalarope,***,2-Aug,16-Aug,1-Sep,19-Sep,5-Oct
Spotted Sandpiper,***,Before July 1,3-Jul,21-Aug,19-Sep,4-Oct
Mourning Dove,***,-,Before July 1,17-Aug,22-Sep,8-Oct
Plumbeous Vireo,*,-,-,15-Jul,22-Sep,6-Oct
Green Heron,*,-,Before July 1,30-Aug,23-Sep,18-Oct
MacGillivray’s Warbler,***,8-Aug,19-Aug,4-Sep,23-Sep,7-Oct
Nashville Warbler,**,2-Aug,16-Aug,4-Sep,23-Sep,12-Oct
Willow Flycatcher,***,9-Aug,20-Aug,3-Sep,23-Sep,7-Oct
Black Tern,*,Before July 1,24-Jul,15-Aug,24-Sep,8-Oct
Hammond’s Flycatcher,*,13-Aug,22-Aug,6-Sep,24-Sep,7-Oct
Least Flycatcher,*,11-Aug,21-Aug,6-Sep,24-Sep,8-Oct
Sage Thrasher,*,-,-,29-Aug,24-Sep,20-Oct
Swainson’s Thrush,**,19-Aug,26-Aug,8-Sep,24-Sep,10-Oct
Wandering Tattler,*,Before July 1,20-Jul,24-Aug,24-Sep,16-Oct
Yellow-headed Blackbird,**,12-Aug,21-Aug,2-Sep,24-Sep,11-Oct
Barn Swallow,***,-,Before July 1,23-Aug,25-Sep,12-Oct
Cassin’s Vireo,**,11-Aug,22-Aug,6-Sep,25-Sep,8-Oct
Gray Flycatcher,*,9-Aug,22-Aug,5-Sep,25-Sep,7-Oct
White-faced Ibis,**,Before July 1,4-Jul,26-Aug,25-Sep,16-Oct
American White Pelican,*,Before July 1,17-Aug,1-Sep,26-Sep,11-Dec
Bell’s Vireo,*,-,Before July 1,28-Jul,26-Sep,12-Oct
Western Wood-Pewee,***,-,-,7-Aug,26-Sep,12-Oct
Swainson’s Hawk,**,-,26-Jul,14-Aug,27-Sep,13-Oct
American Avocet,*,-,Before July 1,31-Aug,28-Sep,20-Oct
Cinnamon Teal,*,31-Jul,16-Aug,5-Sep,28-Sep,14-Oct
Red-throated Loon,*,25-Aug,5-Sep,20-Sep,28-Sep,2-Oct
Brewer’s Sparrow,**,6-Aug,21-Aug,8-Sep,28-Sep,11-Oct
Western Tanager,***,15-Aug,25-Aug,7-Sep,28-Sep,12-Oct
Wilson’s Warbler,***,8-Aug,22-Aug,8-Sep,28-Sep,12-Oct
House Wren,**,14-Aug,24-Aug,9-Sep,29-Sep,8-Nov
Warbling Vireo,***,14-Aug,25-Aug,9-Sep,29-Sep,13-Oct
Blue-gray Gnatcatcher,*,9-Aug,24-Aug,12-Sep,30-Sep,13-Oct
Killdeer,**,4-Aug,19-Aug,8-Sep,30-Sep,20-Nov
Green-tailed Towhee,**,21-Aug,1-Sep,14-Sep,1-Oct,12-Oct
[/table]
[/expand]

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Scientific Team

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