612 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



DENDROICA PALMARUM PALMARUM (Gmelin). 

 PALM WARBLER. 



Win^s dusk}' with light grayish brown or brownish gray edgings, 

 l)ut without any distinct bands; a yellow or whitish superciliar\' stripe; 

 under parts with at least the under tail-coverts 3"ellow; spring and 

 summer adults with a chestnut pileum. 



Adults (-s¥,w-s' aJike^) in sprhig and summer. — Forehead and crown 

 uniform bright chestnut, the former sometimes blackish antcriorl3% 

 where divided by a short and narrow median line of whitish or pale 

 yellowish; rest of upper parts grayish olive or hair brown, narrowly 

 and indistinctly streaked with darker, especially on back and scap- 

 ulars; lower rump and upper tail-coverts light yellowish olive or 

 olive-greenish, the larger coverts more brownish, with indistinct mesial 

 streaks of darker; wings and tails dusky with light grayish brown or 

 brownish gray edgings, these most distinct on the terminal portion of 

 middle and greater wing-coverts; inner web of two outermost rectrices 

 with a large terminal spot of white, the third sometimes with a small 

 terminal spot of the same; a narrow superciliary stripe of pale yellow; 

 a triangular spot of dusky at anterior angle of eye, and a similar ])ut 

 smaller postocular spot; auricular region grayish brown, sometimes 

 finely streaked anteriorly with dull brownish white; an indistinct sub- 

 orbital space of dull brownish white; malar region dull whitish, some- 

 times tinged with yellow; chin, throat, chest, and under tail-coverts 

 canary yellow, the intervening under parts (breast and abdomen) dull 

 whitish, usually more or less tinged with yellow; chest (at least lat- 

 erally) streaked with brown or chestnut, the sides and flanks less dis- 

 tinctly streaked; sometimes a series of brown or chestnut streaks 

 along each side of throat; bill browniish lilack with paler tomia; iris 

 brown; legs and feet dusky brown (in dried skins). 



Adidts hi winter. — Forehead and crown grayish l^rown, streaked 

 with dusky, sometimes with a slight admixture of chestnut, mostly con- 

 cealed; superciliary stripe, chin, throat, and chest dull white instead 

 of yellow; otherwise like the spring and summer plumage, but back, 

 etc., rather browner, and with darker streaks less distinct (sometimes 

 obsolete), and streaks on chest, sides, etc., never {i) chestnut. 



Yofiny injirst autumn and winter. — Similar to fall and winter adults, 

 but nuicli browner (olive-brown) above, superciliar}' stripe less distinct, 

 and markings of under parts more sufl'used. 



Young in first plumage not seen. 



Adult nmlr.^l^Qngt\\ (skins), 114.3-127 (122.1); wing, G2-67. 1(61.5); 

 tail, 50.5-53.6 (52.6); exposed culmen, 9.1-10.2 (9.9); tarsus, 19.6- 

 20.8 (20.1); middle toe, 11.9-12.9 (12.1).- 



^ Many adult females are absolutely indistinguishable in plumage from the bright- 

 est colored males; possibly, however, this sex may aver-^ge a little duller in color. 

 * Nine specimens. 



