BIRD NOTES AFIELD 



c'. Back olive-greenish; throat white. 



Green-tailed Towhee 140 



3. Birds colored olive-green or with some iridescent green or dull 

 green. 



a. Above plain olive-green. 



a. Below dull olive-yellowish or olive-greenish. 



Female Lutescent Warbler 1 65 



b'. Below plain gray. 



a". Smaller; slighter bill. 



Female Ruby -crowned Kinglet 202 



b". Larger; stouter bill. 



Mutton's Vireo 161 



b. Above dark glossy green ; under parts pure white. 



White-beliied Swallow 150 



c. Above velvety green and purplish ; under parts white. 



Violet-green Swallow 151 



J. General color streaked white, gray and brown, burnished with 

 greenish and bluish iridescence. Length, 24 inches. 



Road-Runner 42 



IV. Birds without any conspicuous color (dull browns, grays, bluish 

 grays, etc.), but with some special markings of black or white.* 

 1 . Birds with a conspicuous black cap in contrast to color of back. 



a. Throat also black; size small. 



a. Wings and tail brownish gray, unmarked. Sides of head 

 conspicuously white. 



Mountain Chickadee 195 



b'. Wings with two white bars; outer tail-feathers white; 

 sides streaked with black. 



Black-throated Gray Warbler 1 69 



b. Throat and breast white, but tail largely black with white 

 edgings. 



a. Tail short; habits of woodpeckers; two middle tail- 

 feathers bluish like back. 

 a". Sides of head broadly white, including the eye. 



Slender-billed Nuthatch 191 



b". A black stripe back of eye with a white line separat- 

 ing it from black cap ; belly more or less buffy. 



Immature Red-breasted Nuthatch 192 



[*By special markings I mean such as a black cap, a white line over eye, a black streak on (ace, a black 

 or clearly defined white throat, conspicuous white bars or spots on dark wings or tail, or clearly defined white 

 maridngs on a black back, but not the streakings or barrings of the body.] 



[148] 



