BUTEO. 235 
ceous spots on outer webs of quills much reduced in extent. 
Male: Wing 12.00-12.50, tail 8.00-9.00, culmen .78, tarsus 
2.90, middle toe 1.40-1.52. Female: Wing 13.00, tail 9.50, 
culmen .90, tarsus 3.00-3.12, middle toe 1.50. Eggs 2.19 x 
1.71, Hab. Pacific coast of United States (and south into 
Mexico ?). 
3396. B. lineatus elegans (Cass.). Red-breasted Hawk. 
ad’, Adult with head and neck grayish, with little if any rufous tinge. 
Adult: Head and neck brownish gray, the feathers with dusky 
shaft-streaks; those of occiput white, with dusky tips; back 
and scapulars dull ash-gray, the feathers with large terminal 
or subterminal spots of dusky (occupying most of exposed por- 
tion of each feather); lower parts (including breast) barred 
with white and pale ochrey rufous. Young: Similar to corre- 
sponding stage of B. lineatus, but smaller and darker in color. 
Wing 10.90-12.75, tail 7.70-8.50, culmen .80-.90, tarsus 2.90- 
3.20, middle toe, 1.25-1.45. Hab. Florida. 
339a. B. lineatus alleni Rinew. 
Florida Red-shouldered Hawk. 
6. Only three outer quills with inner webs distinctly emarginated. 
c. Wing more than 13.50. Tail grayish brown, or brownish gray, some- 
times with a hoary tinge, crossed by an indefinite number (about 9 
or 10) of narrow dusky bands, which toward base of tail become 
gradually indistinct and finally obsolete. Adult male, normal plumage: 
Above nearly uniform grayish brown; forehead, chin, and throat 
white, usually abruptly defined and forming a distinct patch; chest 
and upper part of breast usually plain rufous or cinnamon (rarely 
mixed or broken with whitish); rest of lower parts buffy whitish, 
sometimes immaculate, but usually more or less barred or spotted 
with brownish; length 19.50-20.00, extent 48.00-50.50, weight 14-24 
pounds, wing 14.40~-16.00, tail 8.00-9.00, culmen .80-.90, tarsus 2.30- 
2.75, middle toe 1.40-1.60. Adult female, normal plumage: Similar to 
the male, but chest-patch grayish brown instead of rufous, or cinna- 
mon; length 21.00-22.00, extent 50.50-56.00, weight 23-34 pounds, 
wing 14.75-17.25, tail 9.00-10.00, culmen .80-.95, tarsus 2.50-2.90, 
middle toe 1.50-1.65. Melanistic phase, both sexes: Whole plumage 
uniform sooty brown, the under tail-coverts sometimes spotted or 
barred with rusty or whitish. (Norz.—In different individuals may 
be seen every possible intermediate condition of plumage between 
this complete melanism and the light-colored normal plumage de- 
scribed above.) Young: Tail as in adult; above blackish brown 
varied with buffy or ochraceous ; head, neck, and lower parts creamy 
buff (deeper in younger, paler in older individuals), the lower parts 
usually more or less spotted with blackish, the head and neck 
