For this installment of "From the Archives," we answer a reader question about the monk parakeets and grackles in Austin.

Birds need more energy to stay warm at this time of year, but they have fewer daylight hours in which to search for food ...

New Zealand's critically endangered flightless parrot, the kakapo, started breeding last week for the first time in four ...

The findings, published in the journal Biology Letters, showed that strangers were more likely to approach each other with ...

An unprecedented avian flu outbreak in Argentine Patagonia devastated a stable elephant seal colony, highlighting the rising threat of infectious disease to wildlife in a warming world.

Most people think of moths as small insects fluttering across porch lights, but some species greatly challenge that image.

Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep.

For every bird that becomes a pampered internet star, countless others are snatched from the wild to feed the illegal global ...