Willow Grouse Sternum

“Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced; viewed from below. a, sternum or breast-bone showing two long slender lateral processes; b, ends of sternal ribs; c, ends of humerous, or upper arm-bone, near the shoulder-joint; d, scapula, or shoulder-blade; e, coracoid; f, merry-thought, or furculum.” Elliot Coues, 1884

Keywords

birds, Ptarmigan, ornithology, bird anatomy, sternum, pectoral arch, North American birds, willow grouse, Lagopus albus

Galleries

Bird Anatomy

Source

Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)

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