A History of North American Birds; Land Birds; Vol. 3 of 3 — Onychotes gruberi, Ridgway. GRUBER’S HAWK.

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A History of North American Birds; Land Birds; Vol. 3 of 3 Volume 3 of 3 · Onychotes gruberi, Ridgway. GRUBER’S HAWK. · ch 94/252

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