This animation from Cornell Lab of Ornithology tracks 118 migrating bird species along their journeys across the Americas, using citizen science. http://ow.ly/wSev303QfZB | National Audubon Society

Visit the Izembek National Wildlife Refuge in Alaska. Walrus, brown bear and virtually the entire population of Pacific Black Brant thrive in this unique area. The Izembek Lagoon lies at the heart of the refuge. Here, shallow, brackish water covers one of the world's largest beds of eelgrass, creating a rich feeding and resting area for hundreds of thousands of migrating birds. #wildliferefugeweek #USFWS #birding | Cornell Lab of Ornithology