Feathered Tarsus of a Grouse Small 320×100 Medium 640×201 Large 1024×321 Download TIFF Original 2400×753 | (363.2 KB) Description "Feathered tarsus of a Grouse, Cupidonia cupido" Elliot Coues, 1884 Keywords bird anatomy, bird parts, Cupidonia cupido, feathered tarsus, grouse, ornithology, tarsus, tarsus of a grouse Galleries Bird Anatomy Source: Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
