The US Department of Fish and Wildlife has a really useful service called the Feather Atlas for identifying bird feathers by their color, size, and shape: http

The US Department of Fish and Wildlife has a really useful service called the Feather Atlas for identifying bird feathers by their color, size, and shape: https://www.fws.gov/lab/featheratlas/idtool.php https://www.fws.gov/lab/featheratlas/idtool.php