49 



" Possibly the light phase 

 A.O.U. Check List ; only 



buff ; throat streaked with dusky, chest 

 more thickly with ferruginous ; a dusky zone 

 across abdomen ; thighs barred ferruginous. 



143. Buteo tropicalis Verrill., Pr. Ac. Nat. Sci. 

 Philad. Ixi. pp. 357-8. (1909) [San 

 Lorenzo.] 



Tropical Buzzard. 



Doubtful species 

 oi B.b. harlani'' 

 type example known.* 



144. Buteo cooperi Cassin, Pr. Ac. Nat. Sci. 

 Philad. 1856, p. 253. [Santa Clara Co., Calif.] 

 Cooj)er's Buzzard. 



C. Tail black. 



Smaller than B. borealis horealis ; average 

 length, ^, 19, wing 12.50 in. ; plumage above 

 reddish brown with darker centres ; lesser 

 wing-coverts bright chestnut ; 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. 



145. Buteo lineatus lineatus (Gmel.), S.N. 1., p. 

 268(1788) [LongIs.,N.Y.] 

 Red-shouldered Buzzard. 



Much darker : " An erythrism of last form " 

 (Coues) ; below generally much darker red- 

 dish, with much less white barring ; thighs 

 rufous. 

 145a. Buteo lineatus elegans Cassin, Pr. Ac. 

 Nat. Sci. Philad. vii, p. 281 (1855) [Cali- 

 fornia.] 

 Western Red-shouldered Buzzard 



Smaller : wing 11-12 in. 

 145b. Buteo lineatus alleni Ridgw., Pr. U.S. 

 Mus. vii., p. 514 (1885) [Tampa^ Fla.] 

 Florida Red-shouldered Buzzard. 



Nat. 



San Domingo 



Calif o.'nia. 



E. North 

 America, N. 

 to Canada, 

 W. to edge 

 of Great 

 Plains. 



W. North 

 America 

 from Brit. 

 Colombia to 

 N.W. Mexico 

 and Lower 

 California. 



S. Carolina 

 to Florida. 



* A.O.U. Check List, ed. 

 to another from Colorado. 



3, 1910, hut Gurney (Ibis, 187C, p. 242) refers 



