Common Yellowthroat, ©Ryan Schain

Continental Summary

Generally unfavorable migration conditions prevail in the West this week, with those pulses of movements that occur featuring Green Heron, Least Sandpiper, Short-billed Dowitcher, Pacific-slope Flycatcher, Common Yellowthroat, and Clay-colored Sparrow, while the East sees a return to more summer like conditions until more favorable conditions and associated moderate flights of Common Nighthawk, Ruby-throated Hummingbird, Red-eyed Vireo, Blue-winged Warbler, Blackburnian Warbler, and Chipping Sparrow come after the middle of the week.

Wondering what was on the move this past week? Check out our regional migration analysis!

[animation name=”forecast-28-august-4-september-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

Marginal conditions remaining as a high pressure center arrives bring light to moderate flights on Friday night along the coast. But these flights are followed by a period of generally unfavorable and summer like conditions in most areas away from New England until the middle and end of the period. While New England sees a return to moderate and locally heavy flights on Sunday night, light movements prevail across the rest of the region. Wednesday and Thursday see a return of more favorable northerly flow in an increasing number of locations, spawning moderate to heavy flights from Wednesday through the end of the period. One interesting feature of note is what is now Erika – this storm may become a hurricane as it approaches the southeastern US and move into to this region as a dissociated tropical depression. BirdCast will monitor this system’s evolution and its potential to bring tropical waifs to the region.

Scarlet Tanager, ©Ian Davies

Species on the Move

[expand title=”Beginning to Arrive %(%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,Begin Arrival[attr style=”color:green”],Rapid Influx,Peak,Rapid Depart

Northern Flicker **** 28-Aug 9-Sep 26-Sep 13-Oct 30-Oct

House Wren *** 28-Aug 4-Sep 15-Sep 7-Oct 23-Oct

Gray Catbird *** 28-Aug 6-Sep 17-Sep 9-Oct 24-Oct

Gray-cheeked Thrush ** 29-Aug 8-Sep 23-Sep 8-Oct 19-Oct

Northern Pintail ** 1-Sep 3-Oct 31-Oct 20-Nov 11-Dec

Sedge Wren * 1-Sep 20-Sep 5-Oct 24-Oct 1-Nov

Marsh Wren ** 1-Sep 20-Sep 5-Oct 24-Oct –

Lapland Longspur * 3-Sep 15-Sep 10-Nov – –

Great Cormorant * 3-Sep 12-Nov After Dec 31 – –

Eastern Phoebe *** 4-Sep 16-Sep 30-Sep 20-Oct 3-Nov

Palm Warbler *** 4-Sep 18-Sep 5-Oct 22-Oct 4-Nov

[/table]
[/expand]

[expand title=”Arriving” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx[attr style=”color:green”],Peak,Rapid Depart

Sora * 12-Aug 28-Aug 21-Sep 16-Oct 30-Oct

Black-and-white Warbler *** 10-Aug 28-Aug 13-Sep 2-Oct 14-Oct

Yellow-throated Warbler * 19-Aug 29-Aug 12-Sep 30-Sep 12-Oct

Wood Thrush ** 23-Aug 30-Aug 11-Sep 28-Sep 15-Oct

Tennessee Warbler *** 16-Aug 30-Aug 16-Sep 4-Oct 18-Oct

Red-headed Woodpecker * 22-Aug 1-Sep 13-Sep 2-Oct 14-Oct

Magnolia Warbler *** 20-Aug 1-Sep 17-Sep 3-Oct 15-Oct

Bald Eagle * Before July 1 2-Sep 6-Nov – –

Sabine’s Gull * 22-Aug 2-Sep 16-Sep 1-Oct 10-Oct

Bay-breasted Warbler *** 22-Aug 2-Sep 16-Sep 2-Oct 13-Oct

Scarlet Tanager *** 23-Aug 2-Sep 15-Sep 3-Oct 15-Oct

Philadelphia Vireo *** 22-Aug 3-Sep 17-Sep 2-Oct 12-Oct

Common Yellowthroat *** 25-Aug 3-Sep 18-Sep 9-Oct 24-Oct

Summer Tanager * 25-Aug 3-Sep 16-Sep 3-Oct 15-Oct

Merlin ** 19-Aug 4-Sep 28-Sep 26-Oct 16-Nov

House Wren ** 28-Aug 4-Sep 15-Sep 7-Oct 23-Oct

Swainson’s Thrush *** 24-Aug 4-Sep 19-Sep 5-Oct 16-Oct

Cape May Warbler ** 22-Aug 4-Sep 19-Sep 5-Oct 17-Oct

[/table]
[/expand]

[expand title=”Peaking” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak[attr style=”color:green”],Rapid Depart

Red Knot * – Before July 1 28-Aug 15-Sep 28-Sep

Ruby-throated Hummingbird *** 30-Jul 14-Aug 28-Aug 21-Sep 5-Oct

Blue-winged Warbler ** 1-Aug 13-Aug 28-Aug 14-Sep 27-Sep

Eastern Wood-Pewee *** 5-Aug 16-Aug 29-Aug 22-Sep 9-Oct

Baird’s Sandpiper ** 6-Aug 17-Aug 30-Aug 15-Sep 25-Sep

Eastern Whip-poor-will * 16-Aug 21-Aug 30-Aug 19-Sep 2-Oct

Olive-sided Flycatcher * 4-Aug 16-Aug 30-Aug 15-Sep 27-Sep

Canada Warbler ** 5-Aug 16-Aug 30-Aug 15-Sep 26-Sep

Common Nighthawk *** 7-Aug 17-Aug 31-Aug 14-Sep 25-Sep

Kentucky Warbler * 15-Aug 21-Aug 31-Aug 17-Sep 29-Sep

Bobolink ** 5-Aug 16-Aug 31-Aug 19-Sep 15-Oct

Sanderling ** – Before July 1 1-Sep 23-Sep 6-Oct

Mourning Warbler * 4-Aug 15-Aug 1-Sep 21-Sep 7-Oct

Buff-breasted Sandpiper * 10-Aug 20-Aug 3-Sep 17-Sep 28-Sep

Least Flycatcher ** 7-Aug 18-Aug 3-Sep 22-Sep 5-Oct

Warbling Vireo *** 13-Aug 21-Aug 3-Sep 19-Sep 30-Sep

[/table]
[/expand]

[expand title=”Departing” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak,Rapid Depart[attr style=”color:green”]

Bank Swallow *** – Before July 1 1-Aug 28-Aug 15-Sep

Clapper Rail * – Before July 1 1-Aug 28-Aug 29-Oct

Upland Sandpiper * 26-Jul 1-Aug 11-Aug 29-Aug 12-Sep

Ruddy Turnstone ** Before July 1 25-Jul 12-Aug 29-Aug 17-Sep

Cliff Swallow ** – – Before July 1 29-Aug 18-Sep

Tree Swallow *** – – Before July 1 30-Aug 10-Nov

Barn Swallow *** Before July 1 22-Jul 4-Aug 30-Aug 16-Sep

American Oystercatcher * – Before July 1 29-Jul 30-Aug 25-Sep

Blue Grosbeak * Before July 1 18-Jul 5-Aug 31-Aug 17-Oct

Roseate Tern * – Before July 1 20-Jul 1-Sep 23-Sep

Black-bellied Plover * 20-Jul 1-Aug 20-Aug 3-Sep 1-Dec

[/table]
[/expand]

Gulf Coast and Southeast

Generally unsettled and unfavorable conditions prevail in the region during this forecast period, pending the passage of Erika in the middle of the week. Warm temperatures and southerly flow will keep flights light to locally moderate. Once Erika arrives and makes landfall, and its circulation begins to influence more significantly regional weather patterns, increasingly moderate to locally heavy flights are likely (this is typical during and after the arrival of such a system). By Wednesday and Thursday nights areas near and west of the Mississippi River valley will experience the best movements of the week.

Brown Thrasher, ©Ian Davies

[expand title=”Beginning to Arrive %(%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,Begin Arrival[attr style=”color:green”],Rapid Influx,Peak,Rapid Depart

Broad-winged Hawk ** 28-Aug 9-Sep 25-Sep 13-Oct 1-Nov

Veery *** 28-Aug 7-Sep 21-Sep 5-Oct 16-Oct

American Redstart ****! 29-Aug 11-Sep 28-Sep 16-Oct 30-Oct

Sora * 29-Aug 10-Sep 18-Dec – –

Nashville Warbler *** 30-Aug 13-Sep 4-Oct 26-Oct 15-Nov

Cape May Warbler ** 31-Aug 12-Sep 29-Sep 16-Oct 31-Oct

Scarlet Tanager *** 31-Aug 12-Sep 27-Sep 15-Oct 28-Oct

Tennessee Warbler *** 31-Aug 15-Sep 3-Oct 22-Oct 5-Nov

American Avocet * 1-Sep 20-Oct 5-Nov 24-Nov 8-Dec

Blue-headed Vireo * 1-Sep 18-Oct 18-Dec After Dec 31 –

Magnolia Warbler *** 1-Sep 14-Sep 1-Oct 19-Oct 1-Nov

Clay-colored Sparrow ** 2-Sep 15-Sep 4-Oct 21-Oct 4-Nov

Common Yellowthroat *** 2-Sep 16-Sep 5-Oct 23-Oct 6-Nov

Sharp-shinned Hawk ** 2-Sep 17-Sep 28-Oct 12-Nov 22-Nov

Brown Thrasher *** 3-Sep 18-Sep 5-Oct 24-Oct 7-Nov

Merlin *** 3-Sep 17-Sep 11-Oct 1-Nov 18-Nov

Swainson’s Thrush *** 3-Sep 14-Sep 29-Sep 15-Oct 27-Oct

Wood Thrush ** 3-Sep 16-Sep 2-Oct 19-Oct 31-Oct

[/table]
[/expand]

[expand title=”Arriving” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx[attr style=”color:green”],Peak,Rapid Depart

Worm-eating Warbler * 9-Aug 29-Aug 15-Sep 4-Oct 17-Oct

Baltimore Oriole *** 18-Aug 30-Aug 14-Sep 30-Sep 10-Oct

Least Flycatcher ** 15-Aug 30-Aug 14-Sep 1-Oct 13-Oct

Ruby-throated Hummingbird *** 26-Jul 30-Aug 13-Sep 5-Oct 20-Oct

Yellow-throated Vireo ** 16-Aug 30-Aug 15-Sep 3-Oct 17-Oct

Chuck-will’s-widow * 15-Aug 31-Aug 17-Sep 6-Oct 20-Oct

Summer Tanager *** 19-Aug 31-Aug 15-Sep 4-Oct 19-Oct

Yellow-bellied Flycatcher * 15-Aug 31-Aug 15-Sep 3-Oct 15-Oct

Acadian Flycatcher ** 20-Aug 1-Sep 16-Sep 5-Oct 18-Oct

Blue-winged Warbler * 19-Aug 1-Sep 17-Sep 4-Oct 16-Oct

Eastern Wood-Pewee *** 16-Aug 1-Sep 19-Sep 12-Oct 29-Oct

Hooded Warbler ** 3-Aug 3-Sep 20-Sep 11-Oct 27-Oct

Northern Parula *** 7-Aug 3-Sep 23-Sep 17-Oct 2-Nov

Northern Waterthrush *** 19-Aug 3-Sep 19-Sep 7-Oct 21-Oct

Warbling Vireo * 23-Aug 3-Sep 17-Sep 3-Oct 14-Oct

White-eyed Vireo *** 19-Aug 3-Sep 20-Sep 11-Oct 30-Oct

Bobolink * 21-Aug 4-Sep 21-Sep 9-Oct 23-Oct

Red-headed Woodpecker ** 24-Aug 4-Sep 18-Sep 6-Oct 11-Nov

Wilson’s Warbler *** 23-Aug 4-Sep 19-Sep 4-Oct 14-Oct

[/table]
[/expand]

[expand title=”Peaking” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak[attr style=”color:green”],Rapid Depart

Cerulean Warbler * 1-Aug 13-Aug 28-Aug 14-Sep 26-Sep

Common Nighthawk ** 10-Aug 18-Aug 28-Aug 19-Sep 4-Oct

Prothonotary Warbler * 2-Aug 11-Aug 28-Aug 23-Sep 9-Oct

Bell’s Vireo * 8-Aug 18-Aug 29-Aug 23-Sep 10-Oct

Buff-breasted Sandpiper * 31-Jul 14-Aug 30-Aug 17-Sep 30-Sep

Bank Swallow ** 6-Aug 17-Aug 1-Sep 16-Sep 28-Sep

Brown-crested Flycatcher * 16-Aug 23-Aug 1-Sep 20-Sep 2-Oct

Cave Swallow * – – 1-Sep 26-Sep 26-Nov

Great Crested Flycatcher *** 11-Aug 20-Aug 1-Sep 20-Sep 5-Oct

Western Sandpiper * Before July 1 11-Jul 1-Sep 20-Sep 2-Oct

Bullock’s Oriole * 13-Aug 21-Aug 2-Sep 18-Sep 30-Sep

Dickcissel * 10-Aug 19-Aug 2-Sep 24-Sep 16-Oct

Kentucky Warbler * 4-Aug 15-Aug 2-Sep 24-Sep 9-Oct

Alder Flycatcher * 4-Aug 17-Aug 3-Sep 20-Sep 4-Oct

[/table]
[/expand]

[expand title=”Departing” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak,Rapid Depart[attr style=”color:green”]

Mississippi Kite *** – – 8-Aug 28-Aug 12-Sep

Black Skimmer ** – Before July 1 6-Aug 4-Sep 18-Sep

[/table]
[/expand]

Great Plains

Southerly flow and warmer temperatures overspreading the region will keep migration unseasonably quiet during this coming week. Light movements will be the norm, with locally moderate movements occurring when conditions allow. Not until Thursday does the hint of change appear, with favorable conditions in the Dakotas spawning moderate to heavy flights there.

Palm Warbler, ©Ian Davies

Species on the Move

[expand title=”Beginning to Arrive %(%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,Begin Arrival[attr style=”color:green”],Rapid Influx,Peak,Rapid Depart

Broad-winged Hawk * 28-Aug 7-Sep 20-Sep 7-Oct 19-Oct

Summer Tanager ** 28-Aug 6-Sep 18-Sep 5-Oct 17-Oct

Northern Flicker **** 30-Aug 13-Sep 7-Oct 26-Oct 5-Nov

Pied-billed Grebe *** 30-Aug 12-Sep 31-Oct 20-Nov 6-Dec

Palm Warbler ** 31-Aug 11-Sep 27-Sep 13-Oct 25-Oct

Sharp-shinned Hawk *** 31-Aug 25-Sep 10-Oct – –

Common Yellowthroat NA 1-Sep 15-Sep 25-Sep 9-Oct 14-Oct

Franklin’s Gull *** 1-Sep 16-Sep 13-Oct 10-Nov 25-Nov

Indigo Bunting ** 1-Sep 15-Sep 1-Oct 10-Oct 21-Oct

Orange-crowned Warbler ****! 3-Sep 17-Sep 3-Oct 21-Oct 2-Nov

[/table]
[/expand]

[expand title=”Arriving” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx[attr style=”color:green”],Peak,Rapid Depart

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

Gray Catbird *** 18-Aug 30-Aug 11-Sep 1-Oct 14-Oct

Swainson’s Thrush *** 18-Aug 30-Aug 13-Sep 29-Sep 10-Oct

Black-throated Green Warbler * 17-Aug 1-Sep 19-Sep 7-Oct 22-Oct

Blue-headed Vireo *** 19-Aug 1-Sep 18-Sep 5-Oct 18-Oct

House Wren ** 25-Aug 1-Sep 10-Sep 3-Oct 19-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

Clay-colored Sparrow *** 20-Aug 3-Sep 24-Sep 16-Oct 31-Oct

[/table]
[/expand]

[expand title=”Peaking” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak[attr style=”color:green”],Rapid Depart

Common Nighthawk *** – – 28-Aug 22-Sep 8-Oct

Ruby-throated Hummingbird *** Before July 1 29-Jul 28-Aug 21-Sep 8-Oct

Blackburnian Warbler * 3-Aug 15-Aug 30-Aug 15-Sep 27-Sep

Canada Warbler * 6-Aug 17-Aug 30-Aug 14-Sep 24-Sep

Northern Waterthrush ** 7-Aug 17-Aug 31-Aug 15-Sep 25-Sep

Red-eyed Vireo *** 11-Aug 19-Aug 31-Aug 19-Sep 2-Oct

Chipping Sparrow *** – – 1-Sep 31-Oct 14-Nov

Common Tern * – – 1-Sep 7-Oct 1-Nov

Yellow-bellied Flycatcher * 6-Aug 17-Aug 1-Sep 17-Sep 28-Sep

Olive-sided Flycatcher *** 9-Aug 19-Aug 2-Sep 18-Sep 29-Sep

Yellow-throated Vireo ** 11-Aug 20-Aug 2-Sep 20-Sep 2-Oct

American Redstart *** 10-Aug 20-Aug 3-Sep 20-Sep 2-Oct

Least Flycatcher *** 8-Aug 19-Aug 3-Sep 20-Sep 3-Oct

Mourning Warbler * 10-Aug 20-Aug 3-Sep 18-Sep 29-Sep

Black-and-white Warbler *** 10-Aug 20-Aug 4-Sep 20-Sep 3-Oct

Ovenbird ** 10-Aug 20-Aug 4-Sep 20-Sep 2-Oct

Rose-breasted Grosbeak ** 12-Aug 22-Aug 4-Sep 25-Sep 10-Oct

Yellow-breasted Chat * 20-Aug 26-Aug 4-Sep 24-Sep 8-Oct

[/table]
[/expand]

[expand title=”Departing” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak,Rapid Depart[attr style=”color:green”]

Prothonotary Warbler * – – Before July 1 30-Aug 24-Sep

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

[/table]
[/expand]

West

Aside from marginally favorable conditions in intermountain and desert locales on Monday to Wednesday nights that carry locally moderate flights, much of the early part of the forecast period is dominated by unfavorable winds and warm temperatures. By Wednesday night, areas from the Pacific Northwest through the northern Rockies will experience more typically fall like conditions, and moderate flights are likely in these areas. By Thursday night, these conditions expand to cover much of the northern portion of the West, and moderate migration so too will be more widespread.

Lincoln’s Sparrow, ©Ian Davies

Species on the Move

[expand title=”Beginning to Arrive %(%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,Begin Arrival[attr style=”color:green”],Rapid Influx,Peak,Rapid Depart

Merlin * 29-Aug 13-Sep 22-Dec – –

American Pipit *** 30-Aug 14-Sep 7-Nov – –

Eared Grebe *** 30-Aug 29-Sep 9-Nov 29-Nov 11-Dec

Lincoln’s Sparrow *** 30-Aug 13-Sep 5-Oct 22-Oct 8-Nov

Say’s Phoebe *** 30-Aug 13-Sep 1-Oct – –

Yellow-rumped Warbler *** 2-Sep 26-Sep 17-Oct 29-Oct 8-Nov

American Wigeon *** 3-Sep 19-Oct 20-Nov 4-Dec 16-Dec

White-crowned Sparrow **** 4-Sep 20-Sep 14-Oct 26-Oct 6-Nov

[/table]
[/expand]

[expand title=”Arriving” tag=”h3″]
[table sort=”,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx[attr style=”color:green”],Peak,Rapid Depart

Clay-colored Sparrow * 14-Aug 28-Aug 17-Sep 6-Oct 2-Nov

Pacific-slope Flycatcher ** 19-Aug 28-Aug 12-Sep 4-Oct 20-Oct

Common Yellowthroat *** 17-Aug 29-Aug 16-Sep 9-Oct 28-Oct

Savannah Sparrow *** 13-Aug 29-Aug 27-Sep 21-Oct 9-Nov

Pomarine Jaeger * 20-Jul 30-Aug 25-Sep 22-Oct 14-Nov

Townsend’s Warbler *** 12-Aug 30-Aug 30-Sep 27-Oct 10-Nov

Vesper Sparrow ** 17-Aug 30-Aug 15-Sep 3-Oct 17-Oct

Common Tern * 19-Aug 1-Sep 16-Sep 3-Oct 16-Oct

Green-tailed Towhee * 21-Aug 1-Sep 14-Sep 1-Oct 12-Oct

Pectoral Sandpiper ** 17-Aug 1-Sep 20-Sep 11-Oct 28-Oct

Orange-crowned Warbler *** 12-Aug 2-Sep 22-Sep 12-Oct 29-Oct

Turkey Vulture *** 23-Aug 3-Sep 14-Sep 6-Oct 19-Oct

Parasitic Jaeger * 21-Aug 4-Sep 20-Sep 8-Oct 22-Oct

Sabine’s Gull * 15-Aug 4-Sep 21-Sep 6-Oct 17-Oct[/table]
[/expand]

[expand title=”Peaking” tag=”h3″]
[table sort=”,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak[attr style=”color:green”],Rapid Depart
Least Sandpiper *** Before July 1 15-Jul 28-Aug 13-Sep 25-Sep

Short-billed Dowitcher * Before July 1 4-Jul 28-Aug 13-Sep 24-Sep

Baird’s Sandpiper ** 30-Jul 13-Aug 29-Aug 15-Sep 29-Sep

Sage Thrasher * – – 29-Aug 24-Sep 20-Oct

Western Sandpiper *** Before July 1 8-Jul 29-Aug 15-Sep 6-Oct

Greater Yellowlegs ** Before July 1 10-Jul 30-Aug 14-Sep 11-Dec

Green Heron * – Before July 1 30-Aug 23-Sep 18-Oct

American Avocet * – Before July 1 31-Aug 28-Sep 20-Oct

Stilt Sandpiper * Before July 1 17-Jul 31-Aug 15-Sep 27-Sep

American White Pelican * Before July 1 17-Aug 1-Sep 26-Sep 11-Dec

Red-necked Phalarope *** 2-Aug 16-Aug 1-Sep 19-Sep 5-Oct

Yellow-headed Blackbird ** 12-Aug 21-Aug 2-Sep 24-Sep 11-Oct

Franklin’s Gull * Before July 1 1-Jul 3-Sep 3-Oct 1-Nov

Willow Flycatcher *** 9-Aug 20-Aug 3-Sep 23-Sep 7-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

Northern Waterthrush * 9-Aug 20-Aug 4-Sep 19-Sep 3-Oct[/table]
[/expand]

[expand title=”Departing” tag=”h3″]
[table sort=”,,,,asc” tablesorter=”true”]
Species,Begin Arrival,Rapid Influx,Peak,Rapid Depart[attr style=”color:green”]

Yellow-billed Cuckoo * – Before July 1 28-Jul 28-Aug 19-Sep

Upland Sandpiper * 26-Jul 2-Aug 14-Aug 29-Aug 10-Sep

Common Nighthawk ** – – 4-Aug 1-Sep 22-Sep

Black-headed Grosbeak *** – – Before July 1 2-Sep 30-Sep

Eastern Kingbird ** 24-Jul 1-Aug 11-Aug 2-Sep 16-Sep

Grace’s Warbler * Before July 1 22-Jul 4-Aug 2-Sep 20-Sep

Broad-tailed Hummingbird *** – Before July 1 28-Jul 3-Sep 26-Sep

Calliope Hummingbird * – Before July 1 27-Jul 3-Sep 23-Sep

[/table]
[/expand]

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Farnsworth and Van Doren