Green Guru: How High Do Migrating Birds Fly? By Susan CosierMarch 29, 2011 By Susan CosierMarch 29, 2011 Popular Stories Why Some Birds Have Red Feathers Bird CSI: A Loon, a Swollen Spleen, and a Mysterious Disease How to Tell a Raven From a Crow This New Parrot Cafe Will Make You Want to Adopt a Bird Learn to Identify Five Owls by Their Calls R Become an Audubon Member Membership benefits include one year of Audubon magazine and the latest on birds and their habitats. Your support helps secure a future for birds at risk. Join Today Watch Live Birds Don't miss a thing on Audubon's live cams. Sign up for alerts from the nests of cormorants, Ospreys, and Atlantic Puffins in Maine. Sign Up for Bird Alerts Albatross and Petrels Need Our Help Albatross & petrels often drown when they get caught on fishing lines, but we can help. Take Action Spread the word. It’s the least you can do.