BIRDS OF NORTH ANT) MIDDLE AMERICA. '-> 



Aihtll nia/c ill sjfi'i)K/ (IikI siiiniiur.- — Pilcuiii and liindiicck ))liiiii sliitc. 

 color or shite-gray; aui'icular region simihir, but nitlicr darkor. the 

 lores and suborbital region still darker, sometimes almost black; a 

 distinct white superciliary stripe, narrower anteriorly; back and 

 scapulars dull olive-green (the feathers souicwliat darker centrally), 

 becoming brighter olive-green on rump, the upper tail-coverts dusky, 

 edged with olive-green; wings dusky, with i)ale grayish l)rown 

 edgings, the middle and greater coverts margined terminally with 

 pale olive or whitish, the tertials edged with the same; tail dusky 

 (rather dai'k»'i- than wings), the rectrices edged with pale griivish 

 brown or olive; exterior rectrix white, with inner portion of its iimer 

 web dusky, except toward end; next rectrix with inner wet) chietly 

 white for terminal half or more but dusky toward edge; anterior por- 

 tion (sometimes the whole) of malar region, chin, and (usually, at least) 

 more or less of upper throat white; rest of under parts light yellow 

 (intermediate l)etween canary and naples yellow), the chest more or 

 less clouded or spotted with gi'ayish dusk}' or olive; bill, legs, and feet 

 black, or brownish black; iris brown; length (skins), 183-166 (153.4); 

 wing, 74-8:^ (77.4); tail, 65-71 (67.5); exposed culmen, 11-12 (11.7); 

 tarsus, 23-26.5 (24.5); middle toe, 14-16 (15); hind claw, 9-13 (10. 5). « 



Adult female in spri/u/ (f)i(/ ■su/imier. —SimUiiv to the adult male of 

 corres})onding season and apparenth" not always distinguishable, l)ut 

 usually considerably duller in color, with gray of the head more 

 brownish; length (skins), 144-161 (151.6); wing, 73-77 (74.6)); tail, 

 <)l-7o.5 (65.8); exposed culmen, 11-12 (11.7); tarsus. 23.5-26(24.4); 

 middle toe, 14-16 (15.1); hind claw, 10-13 (1(M>).'' 



Young male hi first autumn. — Above plain oli\'e, more grayish on 

 head and rump; wings and tail as in adults; superciliary stripe, chin, and 

 throat pale straw yellow, the first two paler, nearly white; rt^st of under 

 parts pale buff}' yellow or yellowish buff, paler (nearly white) on und(>r 

 tail-coverts; (;hest tinged with brown, and with a distinct crescentic 

 patch of darker bi'own; sides and flanks light grayish t)rown or olive. 



Youmi feiiial<>>< iu first autuuin. — ^Similar to the young male of cor- 

 responding season, but chest less strongl}' tinged with brown and with 

 only a few spots of darker l)rown. 



Young., nestling plumage.— A.ho\Q olive-brown, the wings and tail 

 as in the autumnal plumage; superciliary stripe, malar stripe, and 

 under parts pale yellowish l)uti', relieved by a conspicuous crescentic 



« Eleven specimens. 



'' Five spei'iineuH. 



Specimens of Buih/tcs flavus Iciicostriatitii measure a.s follows: 



Adult ninks.— Wing, 77-82 (79.9); tail, 68-78 (70.3) ; exposed culmen, 12-l.S (12.6); 

 tarsus, 25; middle toe, 15-16.5 (15.6); hind claw, 10-13 (11.8). (Seven specimens.) 



Adult f,'iiHi/('s.—Wmg, 73-78 (76.2); tail, 63-69(65.4); exposed culmen, 12-13.5 

 (12.S); tarsus, 24-26 (25); middle toe, 14-16 (15.5); hind chnv, 10-13 (11.3). i Six 

 specimens. ) 



