Bird Trachea Small 208×320 Medium 415×640 Large 664×1024 Download TIFF Original 1557×2400 | (587.3 KB) Description "a, an inch of trachea, contracted to the utmost, the rings looking like alternating half-rings; b, the same, stretched to two inches, the rings evidently complete, with intervening membrane." Elliot Coues, 1884 Keywords asper-artery, bird airway, bird anatomy, bird trachea, bird windpipe, birds, internal parts of birds, North American birds, ornithology Galleries Bird Anatomy Source: Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
