A History of North American Birds; Land Birds; Vol. 2 of 3 - Spencer Fullerton Baird; T. M. Brewer; Robert Ridgway - Page №65

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5. Guiraca cærulea. ♀ Cal.

6. Cyanospiza parellina. ♂ N. Leon, Mex., 4074.

7. Cyanospiza ciris. ♂ Texas, 6271.

8. Cyanospiza ciris. ♀.