624 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



abruptly, tipped with white; outermost primary black with a white 

 subterminal area, about 38-45 mm. long, involving both webs, the 

 shaft, however, black; second primary (from outside) similar but with 

 the white subterminal area smaller, and extreme tip also white; third 

 primary with basal half (approximately) pale gray and apical white 

 spot larger; fourth primary similar but the subterminal black area 

 more restricted, the Une between it and the pale gray anterior portion 

 more sharply defined; fifth pale gray passing terminally into white, 

 but crossed near tip by a band of black about 19 mm. wide-; sixth 

 similar but with the subtermmal black reduced to a more or less dis- 

 tinct spot; remaining (proximal) primaries pale gray passing into 

 white terminally, without any black subterminal markings; bill 

 greenish yellow with a subterminal band of black, the tip sometimes 

 tinged with orange or orange-yellow; interior of mouth deep orange- 

 red; rictus and naked orbital rmg vermilion red; iris light yellow or 

 cream-yellow; legs and feet light yellow, sometimes sUghtly tinged 

 with greenish. 



Adults in winter. — -Similar to summer adults, but head and neck 

 (except chm, throat, and foreneck) streaked with brownish gray. 



Young. — Upper parts dusky grayish brown, the feathers margined 

 with pale grayisJi buffy; primaries blackish, the proximal quills 

 light gray basally and tipped with white; secondaries light gray for 

 basal half (approximately), dusky or blackish distally, where edged 

 with white; proximal two-thirds (approximately) of tad pale gray 

 (more whitish basally) mottled with deeper brownish gray or grayish 

 brown, the distal third dusky or blackish, narrowly tipped with 

 white; under parts white, spotted or clouded laterally with grayish 

 brown; bill blackish, the basal portion of mandible and of maxillary 

 tomia paler (dull flesh color in life); iris brown; naked orbital 

 ring bluish; legs and feet grayish (in life). 



Downy young. — General color pale buft'y grayish, paler (dull buffy 

 whitish) on head, neck, and chest; head with numerous irregular 

 blackish spots and streaks, of which the most distinct, and blackest, 

 is a longitudinal spot or streak in center of forehead; back, rump, etc., 

 more or less distinctly clouded or marbled with dusky; bill black, 

 with terminal third or more dull vellowish. 



