BIRDS OF NOETH AND MIDDLE AMERICA. 



485 



Immature male. — Pileum and hindneck dusk}', the featHers very 

 indistinctl}^ edged with grayish olive; rest of upper parts dull grajdsh 

 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, bei'oming 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 detined central spot of the same; wings and tail 

 dusk}', 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 sparseh' streaked across chest and along sides with 

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

 and more ))uffy. 



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

 streaks of pileum and hindneck and spots on dorsal region ver}^ much 

 less distinct, the upper surface in general being nearh' 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, especiall}^ on chest, sides, and ffanks, which are 

 not obvioush' streaked. 



J/«Ze.— Length (skins), about 93.98-105.41; wing, 58.42-61.77 

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

 5.33-5.84 (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).^ 



i^m«/t>.— 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. These 

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



