Green Guru: How High Do Migrating Birds Fly? By Susan CosierMarch 29, 2011 By Susan CosierMarch 29, 2011 Popular Stories Who's Who Announcing the 2015 Audubon Photography Awards How to Tell a Raven From a Crow 2015 Audubon Photography Awards Top 100 New York Turns Out the Lights R Find Audubon Near You Visit your local Audubon center, join a chapter, or help save birds with your state program. Explore the Network Time to Get Your Bird On Our May newsletter features Photo Award Winners, a DIY birdbath, and more. Read Now! A Blank Check For Eagle Killers? Help us stop plans to gut our most cherished bird conservation laws. Help Audubon Now! Spread the word. It’s the least you can do.