158 Tue WiLtson BULLETIN—NOs. 76-77. 
yellowish white in all stages, not brown as in B. platypterus. 
Cere yellow. Feet orange yellow. Bill dark slaty. 
Male—Wing, (9.45-9.77) 240-248; Tail (5.99-6.07) 152-154; Tarsus 
2.09-2.17) 53-55. Female—Wing, (9.97-10.71) 253-272; Tail (5.95- 
6.50) 151-165; Tarsus (2.09-2.17) 53-50.” Austin H. Clark, Proc. 
Biol. Soc. Wash., XVIII, Feb. 21, 1905, 62. 
Later a more comprehensive description is given: “Above 
brown, the feathers white at the base and margined with ru- 
fous to the tips, the white bases showing through the nape, 
and giving that region a mottled appearance. Wing coverts 
margined all around with rufous, lores whitish; head brown 
all around, the feathers margined with rufous, being dark- 
est at base of bill and under eyes. Throat light buff, more 
heavily toward abdomen, which is mainly light buff, barred 
with rufous brown. Under tail coverts light buff. Thighs 
buff, barred with many transverse lines of rufous. Under 
wing coverts buff like thighs, many of the feathers having 
small black central streaks. Upper tail coverts tipped with 
white. Tail brown, tipped with light grayish brown, with 
white at the extremity, crossed by two bands and an indi- 
cated third band of light grayish brown, becoming white on 
the inner webs of the feathers. Iris yellowish-white; cere 
yellow; feet orange; bill dark slaty.” Clark, Proc. Boston 
Soc. Nat. Hist. XXXII, No: 7, Oct. 11905; 241. 
BUTEO PLATYPTERUS RIVIEREL. 
Dominica, West Indies. Type specimens in the collection 
of Dr. L. B. Bishop, New Haven, Ct. Original description: 
“Much smaller, darker, and with relatively heavier feet and 
legs than any other form. Adults: Above deep umber or 
dusky brown or even blackish. Back, scapulars and upper 
wing coverts always edged with deep rusty or rufous. Prima- 
ries plain dusky on outer webs pure white with no indication 
of darker bars. Under wing coverts rich rusty or orchreous 
with narrow median lines and subterminal bars of dusky. Up- 
per tail coverts broadly tipped with white. Tail feathers 
dark grayish or dusky, crossed below by about six white, 
