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Migration is an instinctual behavior for many animals, including birds. Each autumn, billions of birds flee the cold weather and head south for winter. This is primarily due to their need for ...

It's the peak of the fall migration season. This is when bird deaths from window collisions tend to spike, even though simple ...

The Purple Martins are in Houston gathering by the thousands for the return trip home. Every year the songbirds migrate from South America to North America in the spring. As summer comes to an end, ...

Climate change is shrinking our birds. Birds in both North and South America are getting smaller as the planet warms, and the smallest-bodied species are changing the fastest, a study reported Monday.

Over 30 million birds are expected to land somewhere in Wisconsin on Friday morning after unpredictable weather conditions during this migration season have created an unprecedented peak this year.