The brilliant and bizarre ways birds use their sense of smell—from natural cologne to pest control

When we think about birds, we often picture their colorful plumage: the iridescence of a peacock's tail or the electric blue flash of a kingfisher. Or we might consider how they use voices, from the ...

These Birds Are of Different Feathers, but They Flock Together

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