The study of irruption behavior is difficult, because researchers are dealing with an event that happens irregularly.

You saw a striking bird with a red head, did you? You wonder what it is. That shouldn't be too hard to figure out, should it? How many kinds of birds with red heads could there possibly be? In the ...

During migration season this past fall, researchers at the Cornell Lab of Ornithology, using Nexrad weather radar, tracked ...

I am seeing just a few purple finches at the feeders now. Last year, over a dozen were here on many days in January. Some may migrate to the south […] ...

This beautiful snowy owl was one of two seen in the annual Mindemoya Christmas Bird Count. Lynn Thompson MINDEMOYA—2024 marked the 51st anniversary of the Mindemoya Christmas bird count held December ...

While the man-made and woman-made gusts and microbursts whip Washington, D.C., into chaos, the only disturbances here are at ...

(Betsy Bloom/Daily News photo) A male and female evening grosbeak in winter 2022-23 in northern Dickinson County. Have you seen this bird? Some Pennsylvania researchers want to know. The Evening ...

"The best winter berries for birds are typically high in fats and sugars, which helps fuel their metabolism in cold weather." ...