BIEDS OF NOETH AND MIDDLE AMERICA. 



485 



Immature male. — Pileum and hindneck dusky, the feathers very 

 indistinctly edged with grayish olive; rest of upper parts dull grayish 

 olive, the feathers of back dusky centrally; under parts (including 

 throat, etc.) dull grayish white, tinged with pale yellowish buff, pass- 

 ing into pale olive-brownish on sides and flanks, the chest and sides of 

 breast streaked with dusky; otherwise as in adult male. 



Young male. — Above rather light olive-gray, becoming paler and 

 tinged with buffy on rump, the pileum and hindneck broadly and dis- 

 tinctly streaked with dusky, and feathers of the back and scapulars 

 with a large, sharply defined central spot of the same; wings and tail 

 dusky, the feathers margined with light olive-grayish, paler and more 

 buffy on middle and greater wing-coverts; under parts white, very 

 faintly tinged with pale buffy, shaded on sides and flanks with pale 

 brownish buffy, and sparsely streaked across chest and along sides with 

 dusky olive-grayish; bill pale cinnamon-brown, the mandible lighter 

 and more buffy. 



Adjult female. — Similar to the young male as described, but dusky 

 streaks of pileum and hindneck and spots on doi'sal region very much 

 less distinct, the upper surface in general being neai'ly plain light 

 buffy olive-grayish. 



Young female. — Similar to the adult female, but more olivaceous 

 and still more uniform above, and under parts strongly tinged with 

 light brownish buffy, especially on chest, sides, and flanks, which are 

 not obviously streaked. 



Jf«fe.— Length (skins), about 93.98-105.41; wing, 68.42-64.77 

 (61.98); tail, 35.56-40.64 (38.61); culmen, 10.41-12.19 (11.18); gonys, 

 5.83-5.84 (5.59); width of mandible at base, 6.10-6.86 (6.60); depth of 

 bill at base, 6.60-8.13 (7.87); tarsus, 18.29-20.83 (20.07); middle toe, 

 12.70-13.97 (13.46).' 



Female.— Length (skins), about 93.98; wing, 58.42-60.96 (59.18); 

 tail, 34.04-36.83 (36.07); culmen, 10.16-11.68 (10.92); gonys, 5.59-6.10 

 (5.84); width of mandible at base, 6.35-6.86 (6.60); depth of bill at 

 base, 7.37-8.13 (7.75); tarsus, 19.30-20.32 (20.07); middle toe, 12.70- 

 14.22 (13.08).' 



'Nine specimens. 

 ^ Four specimens. 



I have examined adult males from only two islands, Charles and James, 

 average as follows (including one immature male from each island): 



These 



