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40.


[[underlined]] Robert Ridgway. [[/underlined]] A Singularly Marked Specimen of Sphyrapicus thyroideus.
[[underlined]] The Auk, iv, 1887, [[/underlined]] pp. 75-76.
The specimen which was shot in Blue Cañon, California, is remarkable for the excessive development of the red color on the head.

[[underlined]] Robert Ridgway. [[/underlined]] The Imperial Woodpecker [[underlined]] Campephilus imperialis [[/underlined]] in Northern Sonora.
[[underlined]] The Auk, iv, 1887, p. [[/underlined]] 161.
The head of ^[[a]] female of this species, shot by Lieut H.C. Benson, U.S.N., within fifty miles of the Arizona boundary was received by the National Museum.