244 BULLETIN 2 08, UNITED STATES NATIONAL MUSEUM 



Adult male (ex Chapin, 1915, pp. 512-513): Feathers of forehead, 

 crown, back, and rump blackish brown, bordered or washed with 

 yellowish citrine, those of nape and upper back whitish at the base. 

 Sides of head lighter, shading gradually to olive-buff on throat, 

 breast, and sides; middle of abdomen still lighter, ivorj^-yellow. 

 Upper wing-coverts and secondaries fuscous-black (freshly molded 

 feathers blacker) narrowly edged with olive-ocher. Primaries similar, 

 but yellowish border almost entirely lacking; both primaries and 

 secondaries fading to pale olive-buff on theu- inner edges. Under 

 wing-coverts colored like the breast, but with faint dusky shaft- 

 streaks. Feathering of flanks ivory-yellow, those of the tibiae Avith 

 strong blackish median lines. Two middle pairs of rectrices dull 

 blackish; third pair whitish, with a small blackish spot on the outer 

 edge close to the tip, and a larger concealed black spot on the inner 

 web towards the base; the three remaining paiis of rectrices white. 

 The long median pair of under tail-coverts blackish, the next pair 

 similar, but margined with whitish, the remainder ivory-yellow with 

 faint shaft-streaks of dark brown. Upper tail-coverts fuscous-black, 

 bordered with amber-yellow. 



The bill, nostril, and feet resemble those of Indicator indicator, 

 but the bill is somewhat stouter, while the wings and tail are shorter. 

 The ninth (outer) primary is intermediate in length between the sixth 

 and fifth, and the seventh and eighth are longest. 



Iris bright brown, naked edges of eyelids grayish brown; bill dusky 

 brown; feet dull grayish green. 



Measurements in millimeters: wing 93.5, tail 56, culmen from base 

 13.5; tarsus 14. 



Adult female: Similar to the adult male but with the longest 

 under tail-coverts shorter, not extending beyond the angle of the fork 

 made by the laterally curved median rectrices. Measurements in 

 millimeters: wing 96, 94, tail 51, 53, culmen 12.5. 



Juvenal (ex Eeichenow, 1910, p. 160; description of "M. sommer- 

 feldi" (= J^oung robustus)): Top of head black, the individual feathers 

 brownish black with dark black edges; the sides of the head deep 

 black; the underparts of the body from the throat to the abdomen 

 dark olive brown, darker anteriorly, the thi'oat almost black; lower 

 abdomen and under tail-coverts cream colored with dark brown tips, 

 the longest under tail-coverts dark brown with cream colored edges; 

 upperparts of body and upper wing-coverts dark brown washed with 

 olive yellow, the individual feathers having dirty olive-yellow tips; 

 remiges blackish brown, externally edged with olive yellow, internally 

 with cream color; under wing-coverts cream color with dark brown 



