The Trachea of a Rook

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“Last entire tracheal ring, viewed from below, crossed by the pessulus.” Elliot Coues, 1884

Keywords

birds, trachea, ornithology, rook, bird anatomy, North American birds, internal parts of birds, bird respiratory organs, bird vocal organs, Corvus frugilegus, Oscine Passerine birds, songs of birds, tracheal ring

Galleries

Bird Anatomy

Source

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

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