A History of North American Birds; Land Birds; Vol. 3 of 3 — Parabuteo unicinctus, var. harrisi (Ridgway). HARRIS’S BUZZARD.

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A History of North American Birds; Land Birds; Vol. 3 of 3 Volume 3 of 3 · Parabuteo unicinctus, var. harrisi (Ridgway). HARRIS’S BUZZARD. · ch 91/252

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