We are likely all familiar with preening, the well-known and important bird behavior that helps maintain feather health and ...

Because birds live outdoors, there's an assumption that they're dirty and harbor many insect pests among their feathers. But this is very wide of the mark: Birds are as clean as cats, spending almost ...

Researchers and volunteers in Texas documented birds of different species preening one another. Experts say the behavior may be more common than documented.