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

Birds are a barometer of the health of water sources, habitats, and air quality. A notable example is the use of canaries in ...

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

Warblers in high mountain wetlands change their dawn singing with temperature, rain, wind, humidity and moonlight, showing ...

Some animals form lifelong pair bonds that run deeper than simple mating. These connections shape how they live, move, and ...

IN southern Brazil, a drink is never just a drink. A cuia, a customary drinking vessel, filled with chimarrão, the traditional Brazilian erva-mate infusion, is passed from hand to hand, opening a ...

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

Female wild turkeys exposed to heavy hunting pressure tend to hatch more daughters, a response that could reshape flock ...

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.

The East River’s “Swan Lake” story has ended in tragedy. A rock-wielding, real-life “Rothbart” is believed to have ruthlessly murdered one half of the beloved swan couple that calls the river home — ...