Boy or girl? Understanding how red-tailed hawks migrate

(PhysOrg.com) -- As any resident of upstate New York will tell you, the red-tailed hawk is the most common hawk in North America. Often seen perched on light and telephone poles along major highways, this majestic animal ...

Climate change makes migrations longer for birds

Bird migrations are likely to get longer according to the first ever study of the potential impacts of climate change on the breeding and winter ranges of migrant birds.

Uncovering the purpose of birds' extra fat

Ornithologists have long wondered why some birds carry more fat than they need to fuel their migration, and a new study in The Auk: Ornithological Advances provides the answer: Leftover fuel from spring migration gives female ...

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