t144a. 
*144b. 
144c. 
144d. 
81 
Smaller than B. borealis borealis ; average 
wing § 317 inm.; wing 2 356, tail 225 mm. ; 
plumage above reddish brown with darker 
centres ; lesser wing-coverts bright chest- 
nut ; below pale brownish rufous, barred 
with white ; thighs paler and more buffy ; 
quills and tail black, barred with white, 
the tail with about 6 bars. 
Buteo lineatus elegans Cassin, Pr. Ac. Nat. 
Sci. Philad., vii., p. 281 (1855). [Cali- 
fornia, type in Phil. Ac. Mus.] 
Western Red-shouldered Hawk. 
Much darker : “‘ Anerythrism of last form”’ 
(Coues) ; below generally much darker red- 
dish, with much less white barring ; thighs 
rufous ; wing ¢ 327 mm. 
Buteo lineatus allent Ridgw., Pr. U.S. Nat. 
Mus. vil., p. 514 (1885). [Tampa, Fia., 
type in U.S. Nat. Mus.] 
Florida Red-shouldered Hawk. 
Much smaller than typical form; wing 
3 295-300, 2 310-325 mm. 
Buteo lineatus extumus Bangs, Pr. New 
Engl. Zool. Cl. vil., p. 35, Jan. 16, 1920. 
[Cape Florida, type in M.C.Z. Harvard.] 
Bangs’s Red-shouldered Buzzard. 
Similar but slightly paler and smaller ; 
wing $ 270-75, tail 167-69; wing 2 295- 
305 mm. 
Buteo lineatus texanus Bishop, Auk., xxix., 
p. 232 (1912). [Texas, type in coll. L. B. 
Bishop, Corpus Christi, Tex.] 
Texan Red-shouldered Hawk. 
W. North 
America from S. 
Brit. Colombia 
to N.W. Mexico 
and Lower 
California. 
S. Carolina to 
Florida. 
Florida Keys. 
Texas, Mexico. 
