It is not a real surprise that the smallest birds in the world belong to the family Trochilidae, commonly known as hummingbirds. However, even within the hummingbird family, there are large ...

Yellow crown bordered broadly with black. Orange in center of yellow crown visible only during display, or when bird is agitated. Black at base of secondaries, contrasting with white wing bar.

In fall and winter, it regularly forms small mixed-species flocks, but a single flock rarely includes more than 6 white-­breasteds. Commonly seen at bird feeders ... has a black crown and ...

A new study by Ohio University found an important fossil of the oldest known modern bird, which lived in Antarctica when ...