Appendix, 



b. Back streaked brown and gray; bill 

 long and slender; an obscure little bird 

 clinging to the bark of trees. 



Brown Creeper . 184 



r. Back streaked with brown and gray; 

 bill short and stout; cap of rufous. 



Chipping Sparrow . 1 24 



d. Back not streaked; plain olive-grayish; 



the breast grayish white; bill moderately 



slender; an active little summer songster. 



Warbling Vireo. i 54 



8. A white ring around the eye. A small 

 olive-green bird, dull bluish gray on 

 head, whitish on breast, olive-grayish or 

 greenish on sides. 



Cassin's Vireo . 155 



9. Tail conspicuously black and white. 

 Length 10 to 13 inches. 



a. Length nearly or quite 13 inches; bill 

 long and stout; general color gray above 

 and below; wings glossy black with 

 conspicuous patch of white; all but two 

 middle tail-feathers largely or wholly 

 white. 



Clarke's Nutcracker . 92 



b. Length about 10 inches; bill moderately 

 long and slender; general color brownish 

 gray above, dull whitish below; wings 

 dark brown with two white bars; three 

 outer tail-feathers wholly or largely 

 white. 



Mockingbird . . 174 



255 



