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The West will experience light migration in areas away from the immediate Pacific Coast and elsewhere that precipitation is forecast, whereas strong high pressure in the Southeast creates favorable conditions for moderate to heavy movements in the Northeast and generally…

Several nights of heavy movements are likely in the central and eastern US over the coming week, whereas the West will experience primarily moderate movements in light winds and generally dry conditions. This week’s regional forecasts follow:

West
Widespread light to moderate…

As some unsettled conditions in parts of the West disrupt and inhibit otherwise light to moderate movements across the region during the coming week, an early week frontal passage through the Eastern US spawns moderate to heavy movements in its…

Team BirdCast is looking closely at the current frontal boundary pushing across the southeastern US and pondering what it might mean for those competing in the World Series of Birding 2017, among other birding events presumably scheduled in the coming days.

Favorable conditions for moderate movements featuring Northern Shoveler, Eared Grebe, Belted Kingfisher, Warbling Vireo, Orange-crowned Warbler, Townsend’s Warbler, Common Yellowthroat, and Savannah Sparrow highlight the beginning and end of the work week in the West, while the East experiences two pulses of moderate to heavy flights over the weekend and in the middle of the work week featuring Blue-winged Teal, Northern Flicker, Eastern Wood-Pewee, White-eyed Vireo, Blue-gray Gnatcatcher, American Redstart, and Chestnut-sided Warbler.

While the favorable conditions in the West arrive during the middle of the period and bring light to moderate movement featuring Western Grebe, Northern Shoveler, Ruddy Duck, Hermit Thrush, Ruby-crowned Kinglet, White-crowned Sparrow, and Dark-eyed Junco, the East experiences more favorable conditions for several waves of moderate to heavy flights featuring American White Pelican, Merlin, Wilson’s Snipe, Marsh Wren, Sedge Wren, Lincoln’s Sparrow, Savannah Sparrow.

A patchwork of conditions in the West brings mostly scattered light to moderate movements over the forecast period, while a wild week of moderate to heavy movements and the potential for fallouts scattered among precipitation and severe weather comes to…

Scattered light and locally moderate movements will occur across the West, while two primarily northeastern pulses of light to moderate and locally heavy movements occur among storm systems in the East.

To begin the weekend, scattered precipitation will keep most birds…

Light to moderate movements featuring Sora, Pacific-slope Flycatcher, Warbling Vireo, House Wren, Swainson’s Thrush, Common Yellowthroat, and early Golden-crownd Sparrows will be widespread from Saturday to Wednesday in the West, while two pulses of favorable migration conditions sandwiched around Irma will bring heavy flights featuring American Golden-Plover, Least Flycatcher, Swainson’s Thrush, Yellow-throated Vireo, Blue-gray Gnatcatcher, Ovenbird, and Chestnut-sided Warbler in the East. Irma comes ashore after devastating the Caribbean, bringing with it a large haul of pelagic and nearshore species.

Late week changes in the West bring favorable conditions and extensive light to moderate movements for the Pacific Northwest through the Rockies, while a frontal boundary brings widespread moderate movements through the Great Plains into the east by mid to…

Warming conditions, occasionally punctuated with scattered precipitation, will generally see light to moderate flights across the West, particularly during the second half of the period, while a cold and quiet start to the weekend in the East will change markedly to begin (and end) the work week with moderate to locally heavy flights.

Late season movements in the West will be sparse, but more widespread light to moderate movements occur in the East during an extended period of favorable conditions. Species on the move this week will include Tundra Swan, Snow Goose, Brant, Cackling Goose, Canvasback, Gadwall, Common…