A History of North American Birds; Land Birds; Vol. 3 of 3 — Centrocercus urophasianus, (Bon.) Sw. SAGE-COCK; COCK OF THE PLAINS.

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A History of North American Birds; Land Birds; Vol. 3 of 3 Volume 3 of 3 · Centrocercus urophasianus, (Bon.) Sw. SAGE-COCK; COCK OF THE PLAINS. · ch 172/252

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