A History of North American Birds; Land Birds; Vol. 2 of 3 - Spencer Fullerton Baird; T. M. Brewer; Robert Ridgway - Page №184

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4. Icterus spurius. ♂ La., 4286.

5. Icterus spurius. ♂ juv. Pa., 1437.

6. Icterus spurius. ♀ Pa., 150.