Life histories of North American cuckoos, goatsuckers, hummingbirds and their allies : orders psittaciformes, cuculiformes, Trogoniformes, coraciiformes, caprimulgiformes and micropodiiformes - Bent, Arthur Cleveland, 1866-1954 (, Washington, D.C.: U.S. Govt. Print. Off., 1940)
Keywords: Birds -- North America; Cuckoos; Caprimulgidae; Humming -- Birds; Birds -- Habits and behavior