“a, b, c, d, inferior laryngeal or syringeal muscles, not well made out in this figure; But typical oscine arrangement (acromyodian) is perceived, inasmuch as anterior (a) and posterior (d) intrinsic muscular masses go to ends of the first tracheal half-ring, at b and c; the extrinsic slip e passing to sternum.” Elliot Coues, 1884
Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
986×2400, 287.5 KiB
420×1024, 45.0 KiB
262×640, 23.9 KiB
131×320, 9.6 KiB