Forecasts

Regional Migration Forecast: 28 April – 5 May 2017

Conditions are mostly marginal for scattered light to moderate flights of Long-billed Dowitcher, Wilson’s Phalarope, Western Wood-Pewee, Swainson’s Thrush, Yellow Warbler, Western Tanager, and Bullock’s Oriole after a strong frontal passage in the West, while the first half of the period in the East see many areas with favorable conditions for moderate to very heavy flights featuring Short-billed Dowitcher, Black Tern, Common Nighthawk, Willow Flycatcher, Least Flycatcher, American Redstart, and Wilson’s Warbler. Conditions for trans-Gulf migration will be generally favorable during the period, with the potential for late weekend and early work week fallouts and concentrations in the Gulf Coast states as frontal passages with precipitation are forecast.


Regional Migration Forecast, western and central Gulf Coast Update: 26 April 2017

Team BirdCast has been watching the trans- and circum-Gulf movements unfold in the last days. Today’s movement is an exciting one, featuring the arrival of large numbers of migrants and another frontal boundary.


Regional Migration Update, Gulf Coast and Southeast: 22-24 April 2017

Last week, Team BirdCast highlighted at potentially complex scenario for inbound Neotropical migrants in the Gulf of Mexico. Let’s get a brief update to see what happened.


Arrival Highlights – 24 April 2017

We’ve created a new tool to update us as species advance through their arrivals in each region, using data from eBird. We assign each species to four possible categories: Not Yet Arrived, Arrival Beginning, Approaching Peak, or Peaking. Then, we look for transitions between categories to tell us how each species is progressing through these […]


Updates from our friends in the field: Emily Cohen at Clive Runnels Mad Island Marsh Preserve

This week, Team BirdCast highlights a friend in the field. Today, it is Dr. Emily Cohen, a research associate at the Smithsonian Conservation Biology Institute.


Regional Migration Forecast 21-28 April 2017

The West will see light to moderate flights, particularly in the Desert Southwest late in the weekend and late in the work week, featuring Spotted Sandpiper, Long-billed Dowitcher, Swainson’s Thrush, Townsend’s Warbler, MacGillivray’s Warbler, Black-headed Grosbeak, and Western Tanager, while a pulse of highly favorable migration period late in the period in the East will bring moderate to very heavy flights featuring Red-headed Woodpecker, Acadian Flycatcher, Least Flycatcher, Swainson’s Thrush, Chestnut-sided Warbler, Bay-breasted Warbler, Northern Parula, and Mourning Warbler. Early period brings a dynamic and complex atmosphere will potential for Gulf Coast concentrations, where late period brings a major incursion of Neotropical migrants across and around the Gulf of Mexico, as favorable flight conditions arrive in Mexico and northern Central America at the peak of the season.


Regional Migration Analysis: 14-21 April 2017

Moderate movements featuring Semipalmated Plover, Caspian Tern, Olive-sided Flycatcher, Warbling Vireo, Swainson’s Thrush, Nashville Warbler, and Western Tanager were the norm for California and the Desert Southwest, while moderate to locally heavy flights graced portions of the East and featured Spotted Sandpiper, Great Crested Flycatcher, Red-eyed Vireo, Wood Thrush, Blackpoll Warbler, Baltimore Oriole, and Dickcissel.


BirdCast World Edition: Barn Swallow in southeast Asia

Here comes the BirdCast World Edition again! Here, we highlight a species with an extensive global distribution and focus on populations that winter in and migrate through southeast Asia: Barn Swallow!


Arrival Highlights – 17 April 2017

We’ve created a new tool to update us as species advance through their arrivals in each region, using data from eBird. We assign each species to four possible categories: Not Yet Arrived, Arrival Beginning, Approaching Peak, or Peaking. Then, we look for transitions between categories to tell us how each species is progressing through these […]


BirdCast Europe Edition: Migration Progress, 14 April 2017

Team BirdCast is including a World Edition to bring a more diverse array of forecasts and analyses for this season. In this week’s post, we briefly feature four species: Common Cuckoo, Barn Swallow, Eurasian Blackcap, and European Robin.


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