A white-browed sparrow weaver inspects a roost under construction, after just receiving some grass brought by another member of its group. (Maria Cristina Tello-Ramos) Neighboring groups of birds ...

A secretive Everglades sparrow at the center of some of the most contentious debate over restoring the vast wetlands is facing an ever more dire threat: sea rise. A new study that modeled both rising ...

Neighboring groups of birds within the same species can create very different-looking nests — showing that their nest-building choices aren't solely controlled by instinct and the environment. Instead ...

Nest-building isn't just instinct. Birds can learn from others, letting groups within one species develop their own distinctive nest-building... When birds build nests, they're also building a culture ...