All 10 previous Wood Warbler sightings in North America have been in Alaska. “It isn’t often that a bird new to California is also new to the entire lower 48 or even continental USA ...

In his landmark paper from 1958, MacArthur described how five species of wood warbler that live in the same trees and were thought to be "ecologically equivalent" could actually coexist by ...

Ornithologists at UCLA and the Natural History Museum of Los Angeles County are recruiting volunteers for Project Phoenix, a ...

There are Three Willow Warbler Sub-Species. The differences in the three wood warbler sub-species involve slight variations in plumage – with centrally located birds being browner and eastern ...

Wood warblers are among our tiniest forms of birdlife. Surprisingly plentiful, more than 30 species — such as this Nashville warbler — may pass through Iowa by the time the autumn migration is ...

As he often does, Long Beach resident Brad Dawson set out on a recent Saturday to do some migration season birdwatching around Willow Springs Park. And although he didn’t realize it at first, he ...

A new study used modern methods to reassess a foundational study in biology that explained how ecologically similar species of wood warblers coexist. The research team examined foraging behavior ...