POLYBORUS. 253 
tinged with orange-rufous or salmon-color. Male: 
Wing 6.80-7.30, tail 4.90-5.20, culmen .46-.51, tarsus 
1.30-1.45, middle toe .90. Female: Wing 7.00-7.60, 
tail 4.70-5.60, culmen .50-.52, tarsus 1.40, middle toe 
91. Hab. Cuba. 
361. F. sparverioides Via. Cuban Sparrow Hawk.’ 
(Light phase.) 
d. Back rufous only in the female and young male, plumbeous or 
dark bluish gray in adult male; breast, etc., deep rusty or 
rufous; forehead and ear-coverts dusky. 
Adult male: Above, except tail, entirely dark plumbeous, or 
slate-gray, or else chiefly of this color; a blackish collar 
across hind-neck ; breast and sides deep rufous, sometimes 
inclining to chestnut; throat grayish white, or light gray- 
ish ; inner webs of quills grayish, transversely clouded or 
mottled with dusky. Young male: Similar to adult, but 
back and scapulars mixed with more or less of rufous, 
rusty of breast ppler, etc. Adult female: Lower parts 
deep rusty ; inner webs of quills rusty, marked with about 
twelve transverse bars or narrow spots of dusky. Male: 
Wing 6.90-7.10, tail 4.80-5.10, culmen .50, tarsus 1.45-1.48, 
middle toe .90. Female: Wing 7.00-7.50, tail 5.00-5.15, 
culmen .50, tarsus 1.35-1.40, middle toe .88-.90. Hab. 
Cuba and Haiti; accidental or casual in southern Florida. 
361. F. sparverioides Via. Cuban Sparrow Hawk, 
(Dark phase.) 
Guyus POLYBORUS Vizituor. (Page 224, pl. LXVILI., fig. 2.) 
Species. 
Common CHaracters.—Tail dull white, or pale isabella-color, narrowly barred 
with grayish or dusky, and crossed at end by a broad band of dark brown or black- 
ish. Adult: Whole top of head, together with greater portion of body and wings, 
blackish, or dark brown; cheeks, neck, chest, and tail-coverts dull white or pale 
isabella-color; nape, back, and breast (sometimes wing-coverts and belly also) 
barred with whitish (or pale isabella-color) and dusky. Young: Plumage striped 
with dull brownish and dull whitish or dull buffy, the pileum plain dull brownish ; 
tail as in adult. 
a. Rump and upper tail-coverts, in adult, white (with or without bars); tail 
white, the narrow bars grayish, the terminal dark band 2.00, or more, 
wide. 
b. Scapulars, breast, belly, and middle wing-coverts barred with blackish and 
whitish in adult, striped in young; tail-coverts barred; wing 16.00-17.70, 
1 Falco dominicensis GuE., Haitien Sparrow Hawk, of first edition. 
