BIRDS OF WORTH AND MIDDLE AMERICA. 



121 



greenish blue or steel gray; inner webs of primaries except innermost 

 (first) with middle portion extensively white, this sometimes obsolete 

 on outermost (tenth) and second; bill, legs, and feet black; iris red 

 (carmine); length (skins), 167-196 (184.4); wing, 90-99 (94.6); tail, 91- 

 105 (96.1); exposed culmen, 10-12 (10.8); tarsus, 16-19.5 (17.6); middle 

 toe, 12-15 (13.8)." 



Adult female. — Plain olivaceous mouse gray, the longer feathers of 

 crest black edged with gray; wings and tail dusky (the latter nearly 

 black), faintly glossed with bronzy greenish; lesser wing-coverts mar- 

 gined with gray; middle coverts broadly margined terminally with 

 white, the greater coverts and tertials edged (more or less broadly) 

 with the same, the primaries more narrowly edged with white or pale 

 gray; rectrices edged with deeper gray, becoming white on outermost 

 rectrices; under tail-coverts broadly margined with white; inner webs 

 of primaries pale \ brownish gray basally, but without any definite 

 light-colored area; bill and feet brownish black or dusky brown; iris 

 brown ?; length (skins), 168-190 (180); wing, 86-96 (90.5); tail, 83-96 

 (89.7); exposed culmen, 11-12 (11.5); tarsus, 17-19 (18.2); middle toe, 

 12-15 (13.3).» 



Young (both sexes). — Similar in coloration to the adult female but 

 slightly browner gray; greater wing-coverts and secondaries edged 

 with brownish white or pale buffy gray instead of pure white, the 

 middle and greater coverts tipped with the same; under tail-coverts 

 with pale margins much less distinct; longer feathers of crest entirely 

 dusky or with indistinct pale edging; texture of plumage very differ- 

 ent — much more lax. 



Immature males are variously intermediate in color between adults 



""Twenty-three specimens. 



^Fifteen specimens. 



Specimens from the southern portion of the Mexican plateau are the largest, those 

 from California the smallest, average measurements according to locality being as 

 follows: 



Locality. 



Wing. 



Tail. 



Ex- 

 posed 

 culmen. 



Tarsus. 



Middle 

 toe. 



MALES. 



Four adult males from Mexican plateau.. . 



Four adult males from western Texas 



Seven adult males from Arizona 



Eight adult males from California 



FEMALES. 



Three ddult females from Mexican plateau 



Six adult females from Arizona 



Six adult females from California 



97.9 

 95.9 

 95 

 92.1 



94 



89.5 



89.5 



99.7 

 97.4 

 96.4 



92.6 



89.1. 



88.6 



10.6 

 10.5 

 11 

 11 



11 

 11 

 11 



18.2 

 18.7 

 17 

 17.1 



18 

 18 

 18.3 



14.1 

 14 

 14 

 13.3 



14 

 13 

 13.; 



No color difference, according to locality, is observable in the very extensive series 

 examined. 



