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How the count started, and how the data is used today.
Anyone can access eBird data on the web, but for the experiences behind the numbers we had to ask the dedicated birders themselves.
To find the elusive Bicknell's Thrush, be patient—and start climbing.
Two artists reconstruct ancient creatures based on fossils.
Baby Cinereous Mourners disguise themselves to look like caterpillars, and researchers have the photos to prove it.
One dauntless bird mugs for Patricia Corapi's camera.
Karen Bacon finds this shock of red in the fresh powder.
