avian science

The North American Breeding Bird Survey is a cooperative effort between the United States and Canada. The bird survey is a long-term, large-scale,…

When America adopted the bald eagle as the national symbol in 1782, there may have been 100,000 nesting eagles. But the eagle population declined, in part…

The North American Breeding Bird Survey is a cooperative effort between the United States and Canada.The bird survey is a long-term, large-scale,…

How do scientists get the data they need to study birds? A lot of data is collected by volunteers, "citizen scientists," through bird surveys and bird…