Warbler Spring Migration

Warbler Spring Migration Article By Susan Reel-Panish Black throated green warbler  - Photo credit Dennis DiMarco In a June 2018 article, on the National Audubon Society website, author Andrew Del-Colle describes a phenomenon sometimes known as a “Fall Out.” In this case, observers in Quebec, Canada saw hundreds of thousands of Warblers, and some other birds, migrating all at once, over the course of several hours. It seems that the birds wer...