August 29, 2014Regional Migration Analysis: 22-29 August 2014Scattered movements in the West were mostly light to moderate in intensity, in contrast to more widespread moderate and isolated heavy movements in the East. Species on the move this week included Baird’s Sandpiper, Common Nighthawk, Pacific-slope Flycatcher, Great Crested Flycatcher,…
April 29, 2016Regional Migration Analysis: 22-29 April 2016Light to moderate flights, primarily in the Desert Southwest and the eastern Rockies, were the highlights of the week in the West and featured Wilson’s Phalarope, Vaux’s Swift, Western Wood-Pewee, Hammond’s Flycatcher, Brown-crested Flycatcher, Warbling Vireo, Yellow Warbler, Hermit Warbler, Summer Tanager, Western Tanager, and Lark Sparrow, while moderate to heavy flights featuring Mississippi Kite, Willet, Ruby-throated Hummingbird, Western Kingbird, Gray Catbird, Bay-breasted Warbler, Black-throated Blue Warbler, Rose-breasted Grosbeak, Blue Grosbeak, Dickcissel, and Baltimore Oriole were extensive in many areas of the East.
March 28, 2014Regional Migration Analysis: 21-28 March 2014The West experienced scattered light to moderate movements as mostly unfavorable conditions for larger and more widespread flights did not materialize; the East saw pulses of light to moderate migration bracketing the forecast period. Species on the move this week…
August 28, 2015Regional Migration Analysis: 21-28 August 2015Moderate and some locally heavy migration was heavily featured across the continent during the past week, with the West seeing pulses of Northern Shoveler, Northern Pintail, Green-winged Teal, Solitary Sandpiper, Pectoral Sandpiper, and Orange-crowned Warbler among other migrants and the East seeing movements including Piping Plover, Solitary Sandpiper, Caspian Tern, Chestnut-sided Warbler, Magnolia Warbler, and Baltimore Oriole.
September 27, 2013Regional Migration Analysis: 21-27 September 2013Changeable conditions across the West spawned scattered and sometimes moderate movements in a patchwork across the region, as strong high pressure dominated the eastern US and spawned extensive and continuing moderate to heavy movements. Birds on the move this week…
October 27, 2017Regional Migration Analysis: 20-27 October 2017Scattered light to moderate movements occurred in the West this week featuring Bufflehead, Canvasback, Lesser Scaup, Red-breasted Merganser, Western Grebe, Horned Grebe, Bonaparte’s Gull, Herring Gull, American Pipit, while pulses of moderate to locally very heavy movements featuring Common Goldeneye, Ring-necked Duck, Rough-legged Hawk, Franklin’s Gull, Golden-crowned Kinglet, Hermit Thrush, White-throated Sparrow, American Tree Sparrow, and Common Redpoll occurred in the East. A displacement of Neotropical migrants to points far north of their typical ranges occurred and continued to unfold at the end of the period in New England and the Canadian Maritimes.
March 27, 2015Regional Migration Analysis: 20-27 March 2015While the West saw early and late forecast period light to moderate movements along the Pacific Coast and in the Desert Southwest including Broad-tailed Hummingbird, Orange-crowned Warbler, Black-headed Grosbeak, and Bullock’s Oriole, scattered light to moderate movements peaking on Tuesday and Wednesday nights including Greater White-fronted Goose, Blue-winged Teal, Barn Swallow, Brown Thrasher, Lapland Longspur, Vesper Sparrow, and Chipping Sparrow increased in the East.
September 9, 2016Regional Migration Analysis: 2-9 September 2016Moderate to heavy flights were peppered across the nation and featured Sharp-shinned Hawk, Veery, Swainson’s Thrush, Northern Parula, Orange-crowned Warbler, Mourning Warbler, Fox Sparrow, Golden-crowned Sparrow, and Dark-eyed Junco during this past forecast period, with more widespread and regional movements generally limited by a few extreme weather events in the Desert Southwest and the Atlantic Seaboard.
October 9, 2015Regional Migration Analysis: 2-9 October 2015A week of light to moderate movements in the southern half of the West featured Red-necked Grebe, Mew Gull, Hermit Thrush, Yellow-rumped Warbler, Townsend’s Warbler, and White-crowned Sparrow, while moderate to heavy flights in the East, particularly in the Upper Midwest, Appalachians, and central Plains, featured Cooper’s Hawk, American Coot, Yellow-bellied Sapsucker, Black-throated Blue Warbler, Eastern Towhee, Fox Sparrow, Swamp Sparrow, and White-crowned Sparrow.
May 9, 2014Regional Migration Analysis: 2-9 May 2014Moderate movements early in the period in the Desert Southwest and widespread moderate and heavy movements nearly throughout the period in some areas of the East highlighted an active week for migrants. Species on the move this week included Spotted Sandpiper,…
August 9, 2013Regional Migration Analysis: 2-8 August 2013The West experienced primarily light movements, particularly toward the Pacific Coast and over the Desert Southwest, while the East experience light to moderate movements, primarily along a corridor from the northern Great Plains South and East toward the Gulf Coast.
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September 26, 2014Regional Migration Analysis: 19-26 September 2014Moderate movements in the West that kicked off the weekend continued through the period in some areas, while a major pulse of heavy flights graced the East early in the period. Species on the move this week included Greater White-fronted and…
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