These birds are a harbinger of summer – but their arrival, and the seasons, are no longer predictable.

Competition over love and real estate drive two extreme behaviors of green-rumped parrotlets: adopting or killing their rivals' babies.

Birdwatching can lower stress and improve well-being for college students, even more than other nature-based activities like walks.

Five livestock experts who study infectious diseases in the dairy industry explain the risks.

Previously unknown aerodynamic interactions shed light on how birds fly in such a coordinated and seemingly effortless fashion.

Wild turkeys were overhunted across the US through the early 1900s, but made a strong comeback. Now, though, numbers are declining again. Two ecologists parse the evidence and offer an explanation.

As climate change threatens their food supply, migratory birds may find help in an unlikely place.

Bird flu is circulating among dairy cows and a dairy farm employee has been infected. An expert explains what you need to know.

Great tits being studied at a woodland near Oxford are adjusting the timings of their breeding season as the climate changes.

Swifts migrate long distances yet face many threats along their journey. Lack of nest sites is a big problem but installing swift boxes and bricks won’t be the only solution.