Oriole Bill Small 320×180 Medium 640×359 Large 1024×575 Download Tiff Original 2400×1348 | (148.3 KB) Description "Icterus. Orioles. Bill averaging as long as head (more or less); very acute, sometimes decurved." Elliot Coues, 1884 Keywords bird anatomy, bird beaks, bird bill, birds, Icterus, North American birds, oriole, ornithology Galleries Bird Anatomy Source: Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
