Ruby-crowned Kinglet

Regulus calendula Sep–May

This bird has a red patch on top of its head in an otherwise olive green body. However this is only the case for the males, and even then it can be hard to see, ranging from a tiny red dot to a prominent streak. The bright color becomes the most visible when the bird is agitated. This kinglet is the hardier of the two, flying as far as Alaska during to breed. They like to forage near the ground and in low trees and shrubs, while the Golden-crowned is less likely to be spotted below shrub height.