Appendix. 



I. Males wholly black. Females sometimes 

 partly brownish or white. 



a. Length i 8 inches or more. 



a'. Length 24 inches. Feathers of 

 throat sharp and distinct, producing a 

 roughened effect. 



Mexican Raven . . 90 



b' . Length I 8 inches. Feathers of throat 

 smooth. 



American Crow . . 91 



b. Length not over ten inches. 



a'. Feet well developed like a crow's. 

 Female dark brownish black. 



Brewer's Blackbird . 102 



b'. Feet weak. Wings highly de- 

 veloped. Female with white breast. 

 Purple Martin . . 142 



2. Males mostly black. Females often 

 streaked with brown and whitish. 



a. Red patches on shoulders. 



Red-winged Blackbirds . 95-97 



b. Yellow breast, and generally entire head 

 yellow. 



Yellow-headed Blackbird . 94 



c. Conspicuous white wing patches. 



Lark Bunting . , 140 



d. Conspicuous white shoulder patches 

 and belly white. Size large; tail long. 



Magpie . . . 84-85 



n. Birds with some bright conspicuous color, 

 at least in the male. 



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