Evolution is resetting the annual clock in migratory birds

The timing of spring migration is vital for birds. Returning too late comes at a cost. In 1981, German ornithologist Eberhard Gwinner demonstrated how an internal circannual clock is responsible for the correct timing of ...

Ancient birds from North America colonized the South

Scientists studying ancient species migration believe northern birds had the ability to colonise continents that southern species lacked. The research, published in Ecography, reveals how the ancient 'land bridge' of Panama, ...

New insights into genetic basis of bird migration

A gene newly associated with the migratory patterns of golden-winged and blue-winged warblers could lend insight into the longstanding question of how birds migrate across such long distances.

How do migrating birds avoid predators while fueling up?

Birds stopping for a break during their grueling migratory flights face a difficult tradeoff: They need to fuel up with food as efficiently as possible, but they need to avoid predators while they do it. To learn more about ...

Where do crows go in winter?

"Partial migration"—where some individuals within a population migrate and some don't—is common among birds and is speculated to be a step on the evolutionary path to complete, long-distance migration, but scientists ...

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