Nesting in a cavity — a hole in a tree, a burrow in a bank, or another enclosed space—gives a bird significant advantages. Cavity nests are generally safer than open-cup nests. The nest contents are ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. A small colony of nesting white storks (Ciconia ciconia) on ...

In the rain-starved deserts of coastal Peru, tiny patches surprisingly rich in plant life dot the landscape. Burrowing birds may be responsible, scientists say. Mounds of sand shoveled out by ...