660 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



abruptly edged with white, forming a conspicuous stripe along outer 

 edge of scapular region; upper tail-coverts, tail, proximal secondaries, 

 distal greater wing-coverts and coverts along margin of wing immacu- 

 late white; distal secondaries pale gray, their inner wehs white; four 

 inner (proximal) primaries pale gray narrowly margined with white, 

 the sixth (from outside) similar but with a blackish subterminal spot 

 or blotch, the fifth (from outside) mostly pale gray with shaft dusky 

 and distal portion (for about 30-35 mm.) black, the extreme tip 

 white; fourth with the black much more extended (125 mm. or more 

 on outer web), with a still smaller apical spot of white; " third 

 primary with outer web black almost to base of outer web, the second 

 and first (outermost) v/ith outer web entirely black; bill black, 

 mth terminal third (approximately) yellowish horn white, pale 

 ohve-buff or grayish pea green; rictus and broad tumid naked, 

 orbital ring orange-red to deep red or crimson; skin of inter-ramal 

 space salmon-red or pink; iris dark bro^ai; legs and feet peach- 

 blossom pink, the webs geranium pink (in Ufe).^ 



Young. — "Head white, with pale bro%vn streaks on the lores, 

 and darker confluent markings in front of and round the eyes; a 

 clove-brown patch on the auricular [region]; feathers of the neck 

 and mantle broadly barred with ash to umber brown and tipped with 

 white; the long unier secondaries with bro^^ii centers and with some 

 gray on the outer webs ; the outer secondaries and the wing upward 

 to the carpal joint white; primaries as in the adult; rump gray 

 mottled with brown; tail-feathers white, broadly banded with 

 brown (except the outer pair, wliich have merely brow^l tips), and 

 aU of them edged with white; under parts white; bill blackish, the 

 lower mandible dark horn color; iris brown; tarsi and toes clay-brown 

 (probabl}'- flesh-color in the living bird.") ' 



a The three outer primaries have the white apical spots reduced to mere specks 

 which would undoubtedly quite disappear with slight wearing of the feathers. 



b Gifford, Proc. Calif. Acad. Sci., 4th ser., ii, 1913, 41. There seems, however, to 

 be some variation in the colors of the feet, etc., Mr. C. F. Adams' description from 

 freshly killed specimens being as follows: 



Adult male. — Tip of beak pearl gray; basal portion brownish slate-black; iris seal 

 brown (large pupil) ; eyelids coral red ; tibiae just below feathers washed with vermilion, 

 most intense next feathers, and between toes at base of webs about same color; tarsi 

 and toes rose pink; creases in webs dusky, the papillae rose pink; nails bro%\-nish 

 black, with a narrow grayish line on top; under surfate of webs same color as upper; 

 under surface of toes and heel orange-ochraceous (not showing on heel when foot is 

 resting on flat surface); between scales on tarsi light ashy; webs most dusky at edges. 

 Length, 22 J; extent, 4 feet 4^ inches. 



c Saunders, Cat. Birds Brit. Mus., xxv, 189G, 166. The fresh colors of the bill, 

 etc., are thus described by Mr. C. F. Adams: 



Young female (Sept. 2).— Logs and feet drab-gray, except posterior portion of tarsus, 

 which is tinged with broccoli brown; iris dark brown; eyelids black; bill slate color. 



