Bird Migration Forecasts in Real-Time

When, where, and how far will birds migrate? Our migration forecasts will answer these questions for the first time.

24 April-1 May 2015 Forecast: and that’s a cold shot, baby

An odd week in the East will feature good conditions for trans-Gulf flights (and fallouts), some early period moderate to locally heavy flights in the Plains, and a more quiet than usual Northeast with numerous species on the move including Green Heron, Black-bellied Plover, Lesser Yellowlegs, Caspian Tern, Blue-headed Vireo, Prairie Warbler, Yellow-throated Warbler, Worm-eating Warbler, Savannah Sparrow, and Summer Tanager, while the West sees a quiet heart of the period bookended by light to moderate flights that will included Lesser Yellowlegs, Long-billed and Short-billed Dowitchers, Black Tern, Plumbeous Vireo, Wilson's Warbler, Hermit Warbler, and Lark Bunting.

Migration Analysis: 17-24 April 2015

This week featured moderate to heavy flights across the southern US, from the Pacific to the Atlantic, and the central US, from Texas to the Canadian border, and these flights included Western Sandpiper, Wilson's Phalarope, Bonaparte's Gull, House Wren, Gray Catbird, Magnolia Warbler, Black-throated Blue Warbler, Lincoln's Sparrow, Lazuli Bunting, Western Tanager, and Summer Tanager.

17-24 April 2015 Forecast: Migration in high gear in South, many new arrivals in North

From Monday to Thursday many areas of the West see light to moderate migration featuring Dunlin, Willet, Least Sandpiper, Olive-sided Flycatcher, Yellow-rumped Warbler, and Green-tailed Towhee, while several disturbances passing through the East spawn fallouts along the Gulf Coast and moderate to heavy movements of numerous shorebirds, Blue-gray Gnatcatcher, Black-and-white Warbler, Prothonotary Warbler, Palm Warbler, Rose-breasted Grosbeak, and White-throated Sparrow in advance of frontal passages.

Migration Analysis: 10-17 April 2015

Migrants were active in the region this week in the West, with several pulses of light to moderate movements featuring Semipalmated Plover, Western Sandpiper, Varied Thrush, Nashville Warbler, Blue Grosbeak, and Western Tanager, while many areas of the East experienced moderate and locally heavy movements at times, particularly on Sunday and Monday nights in advance of a cold front, that featured American Bittern, Ruby-crowned Kinglet, House Wren, Yellow Warbler, White-crowned Sparrow, Rose-breasted Grosbeak, and Baltimore Oriole.

Regional Migration Forecast: 10-17 April 2015

Pulses of light to moderate movements will follow the favorable conditions across the West, particularly early in the week, and will feature Lesser Yellowlegs, Dunlin, Bonaparte's Gull, Caspian Tern, Vaux's Swift, Black-throated Gray Warbler, Wilson's Warbler, and Yellow-headed Blackbird, while the East sees moderate to heavy flights that track those favorable conditions early to mid week and that feature a large number of arrivals including Green Heron, Willet, Wilson's Snipe, Red-eyed Vireo, Cliff Swallow, Yellow-throated Warbler, Kentucky Warbler, and Swamp Sparrow among many others.

Regional Migration Analysis: 3-10 April 2015

An active beginning and end to the forecast period in the West featured light to moderate movements primarily in the southern portion of the region and included Western Sandpiper, Franklin's Gull, Cassin's Vireo, Black-throated Gray Warbler, and Nashville Warbler, while increasingly widespread moderate movements punctuated the period in the East and included Franklin's Gull, Ruby-crowned Kinglet, Common Yellowthroat, Chipping Sparrow, and Summer Tanager.

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