Green Guru: How High Do Migrating Birds Fly? By Susan CosierMarch 29, 2011 By Susan CosierMarch 29, 2011 Popular Stories When to Expect Hummingbirds in Your Yard This Spring How to Tell a Raven From a Crow How to Make Hummingbird Nectar The Migratory Bird Treaty Act, Explained New Bird-of-Paradise Slides Around Sporting a Bright-Blue Frown R “The views expressed in user comments do not reflect the views of Audubon. Audubon does not participate in political campaigns, nor do we support or oppose candidates.” Defend the Arctic Refuge Pledge to continue to oppose drilling in the Arctic National Wildlife Refuge, one of the wildest places left in America. Take the Pledge Endangered Species Act in Trouble Ask your members of Congress to oppose efforts to weaken the Endangered Species Act. Take Action Get Audubon in Your Inbox Let us send you the latest in bird and conservation news. Email address * Leave this field blank Spread the word. It’s the least you can do.