950 



1. Tlnoal and lireast brownish a;ray. 



2. Entire nnderparts white. 



a. Above steel l)lne or steel green. 

 I). Above bronze-green. 



126. Purple Martin. 



131. Tree Swallow. 



132. Violet-xreen Swallow. 



133. Bohemian Waxwing. 



134. Cedar Wa.xwing. 



Shrikes. 



136. White-rumped Shrike. 



135- Northern Shrike. 



137. California Shrike. 



I'aiiiily 15. A.\ir'i:i,ii)Ai;. Waxwings. 



The Wa.wvings are silent birds as to song, altho they liave a faint conversaticmal twitter. The 

 delicacy of tlieir ])hnnage and the red wax-like tips of some of the wing feathers are characteristic 

 features. 



T. Wing over 4.50. 



II. Wing nnder 4.0O. 



Fa III ily 1 6. La x 1 1 1).\ !•;. 



These are the raptorial birds among the Passeres. 

 I. Underparts pure white, 

 ir. Underparts not pure white. 



A. Wing more than 4 inches. 



B, Wing 4 inches or less. 



I'aiiiily 17. X'lRicuMu.xi:;. Vireos. 



In some respects the Vireos reseniljle the last group, but tlieir baliit is to glean deliberately 

 among the foliage or along the branches rather than dart out fnr insects that are Hying. All of them 

 have pleasing songs. 



I. Length more than 6 inelu^. 



A. Sides of crown bordered by black. 138. Red=eyed Vireo. 



B. Sides of crown without black. 140. Cassin's Vireo. 



II. Length less than inches. 



A. Two white wing bars. 141. Anthony's Vireo. 



B. No white wing liars. 139. Western Warbling Vireo. 



I'aiiiily i<S. TvRAXMD.MC. Flycatchers. 



The most distinctive thing about these birds is their habit of sitting quietly and alert on some perch 

 from which they can command a fairly wide view, and from it launch nut to catch .1 tlyiug insect. 



I. Wing over .3 inches. 



.A. Tip of tail broadly white. 142. Kingbird. 



B. Tip of tail not broadly or not at all white . 



1. Underparts without yellow nr yellowish. 



a. Below uniform white. 



b. Below black, only the belly white. 



2. LTnderparts with rusty brown. 



3. L'nderparts with yellow or yellowish. 



a. Tail with rufous. 



b. Tail without rufous, 

 (i). Belly bright yellow. 

 (2). Belly only yellowish. 



(a). Length less than 7 inches, 

 (b). Length 7 or more. 



II. Wing under ,? inches long. 



A. Ll'nderparts distinctly yellow. 



B. L'nderparts yellowish only. 



1. Above distinctly brownish. 



2. .Above grayish olive, not brown. 



a. Outer web of outer tail feather abruptly paler than 151. Wright's Flycatcher. 



inner web. 



b. Outer web of outer tail feathers not abruptly paler 150. Hammond's Flycatcher. 



than inner web. 



B. C. & H. 10. (iray Kingbird. 

 H. 36. Western Black Phoebe. 

 145. Say's Pewee. 



144. Ash^throated Flycatcher. 



143. Western Kingbird. 



147. Western Wood Pewee. 

 140. Olive-sided Flycatcher. 



148. Western Flycatcher. 



149. Traill's Flycatcher. 



