March 27, 2015Regional Migration Forecast: 27 March – 3 April 2015Friday and Monday nights will be the most extensive of the light to moderate movements that occur in the West this week featuring Cassin’s Vireo, Tree Swallow, Orange-crowned Warbler, Common Yellowthroat, Black-throated Gray Warbler, White-crowned Sparrow, while several pulses of more extensive light to moderate movements grace the East from Saturday through Wednesday featuring Double-crested Cormorant, Osprey, Pectoral Sandpiper, Baird’s Sandpiper, Eastern Phoebe, Yellow-throated Vireo, Hooded Warbler, and Fox Sparrow.
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.
March 20, 2015Regional Migration Forecast: 20-27 March 2015Most of the movement in the West this period occur this weekend and early in the week, with light to moderate movements that will see increasing arrivals of Osprey, Rufous Hummingbird, Bell’s Vireo, and Hooded Oriole, while the East will experience the greatest intensity and extent of moderate movements from Monday through Thursday with increasing arrivals of Great Blue Heron, Great Egret, American Golden-Plover, Belted Kingfisher, Louisiana Waterthrush, and Song Sparrow.
March 20, 2015Regional Migration Analysis: 13-20 March 2015Light to moderate migration, primarily in California and the Desert Southwest early in the period, brought increasing numbers of Bell’s Vireo, Lucy’s Warbler, Yellow Warbler, and Bullock’s Oriole to the West, while slightly more extensive light to moderate movements on Sunday and Monday nights, including Blue-winged Teal, Eastern Phoebe, Blue-headed Vireo, Tree Swallow, and Pine Warbler among other migrants, highlighted the period in the East.
March 13, 2015Regional Migration Forecast: 13-20 March 2015Continental Summary
Weekend birders can look forward to widespread light to moderate movements across the West, while Monday through Wednesday brings similarly widespread light to moderate flights in the East. Species on the move this week will include Blue-winged Teal, Turkey Vulture,…
March 13, 2015Regional Migration Analysis: 6-13 March 2015In light to moderate migration Mountain Bluebird, Hooded Oriole, Barn Swallow, and Lucy’s Warbler were on the move last weekend in the West, while Wood Duck, Killdeer, American Woodcock, and Northern Parula composed mid to late week flights in the East.
Light to moderate…
March 13, 2015Species on the move (or soon to be): American RobinAmerican Robin is a sure sign of spring for many, whether you wait patiently for the first migrants to scamper across a lawn that is (finally) not icy or white (can you tell that parts of the eastern US are very ready for…
March 13, 2015Definitions – BirdCast regions, species on the move, and migration amountsFor migration forecasts and analyses, we use the following divisions to represent the continental US. We use these regions because their component states have many migration patterns in common and because their component states’ proximity make for logical groupings. Without…
March 6, 2015Regional Migration Forecast: 6-13 March 2015Although winter’s clutches continue to grip some parts of the country, signs of early spring movements and those to come later are appearing daily. For example, Northern Parulas are right on time in the southeastern US, as seen in the image…
March 1, 2015Will anomalous warmth cue early short distance migrants in the East?After a long and cold go of it in many parts of the eastern US in the past weeks, the prospect for warmer weather, even if ephemeral, is almost certain lighten many moods. So too might it provide a kickstart…
February 9, 2015Species on the move: Common RedpollEvery year for the last 15 years, Ron Pittaway of Ontario Field Ornithologists publishes a forecast for the movements of winter finches in the upcoming winter. Team BirdCast loves this. This forecast focuses specifically on the movements of Ontario populations of these species, but many across…
February 6, 2015Will a mid-winter warm blast kickstart early migrant movements in the western and central US?In March 2012 much of the eastern US experience anomalously warm temperatures in March that correlated with record early arrivals of migrants. This weekend, across some of the central US and much of the western US, anomalously warm temperatures are forecast. The image…
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