What Bird is That?

Bird-watcher's guide, first published in 1920. 16 illustrations, some color, some black-and-white. As explained in the Introduction: 'As Curator of the Department of Birds of the American Museum of Natural History I have had exceptional facilities for the arrangement of collections designed to give students a comprehensive view of local bird-life without confusing them with unnecessary details.' According to Wikipedia: 'Frank Michler Chapman (June 12, 1864 - November 15, 1945) was a U.S. ornithologist and pioneering writer of field guides... Chapman came up with the original idea for the Christmas Bird Count. He also wrote many ornithological books such as, Bird Life, Birds of Eastern North America, Bird Studies With a Camera, and Life in an Air Castle. For his work, Distribution of Bird-life in Colombia, he was awarded the Daniel Giraud Elliot Medal from the National Academy of Sciences in 1917.'