Birding Wire

Juncos Provide an Interesting Look into Speciation

The western Oregon Dark-eyed Junco
The eastern Slate-colored Dark-eyed Junco
The Gray-headed Dark-eyed Junco
Illustration by Borja Mila from the National Museum of Natural Science in Madrid, one of Ellen Ketterson's collaborators, shows the color morphs of Dark-eyed Juncos and Yellow-eyed Juncos across North America. The seven Dark-eyed Junco color forms