Green Guru: How High Do Migrating Birds Fly? By Susan CosierMarch 29, 2011 By Susan CosierMarch 29, 2011 Popular Stories A Beginner’s Guide to IDing Cooper’s and Sharp-Shinned Hawks Pigeon Portraits Reveal the City Bird’s True Beauty Do You Know Where the Birds Go? Day 259: A New Big Year World Record Making the 9/11 Memorial Lights Bird-Safe R Act for Greater Sage-Grouse Voice your support for U.S. Fish and Wildlife Service efforts to save the Greater Sage-Grouse. Take Action Find Audubon Near You Visit your local Audubon center, join a chapter, or help save birds with your state program. Explore the Network The Audubon Bird Guide App 821 North American birds at your fingertips, now free. Spread the word. It’s the least you can do.