Bird Migration - by Wezil Walraven, Field Ornithologist

Migration is a fascinating phenomenon. Not all birds do migrate, as permanent residents will not fly south in the winter and north in the spring; they stay within their territory all year. Other species might move shorter distances staying closer to their original territories, and still more species will fly much longer distances.
We are going to talk about the birds that do migrate, why, where and how in the United States.