During 1989-92, spring surveys of randomly selected, 1-km 2 plots, stratified by physiographic strata, were conducted in the Atlantic Flyway from New Hampshire to Virginia, to estimate mallard (Anas ...

Bird migration is one of the great wonders of the natural world. When traveling between their breeding and wintering grounds, birds don't choose their paths at random. Instead, they follow set routes ...

One of the world’s greatest flyways, the African-Eurasian flyway links cultures, landscapes and people across the great continents of Africa, Europe and Asia. With three major routes from the Artic to ...