280 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



Rev. Mus. Paulista, xxii, 193S, 70 (Brazil; distr.) — Griscom and Green way, 



Bull. Mus. Comp. Zool„ Ixxxviii, 1941, 112 (Lower Amazonia; Marajo 



Island).— Street, Auk, Ixiii, 1946, 371 (Trinidad). 

 Tachytriorchis ahhreviatus Shahpe, Cat. Birds Brit. Mus., i, 1874, 163, part 



(Guiana; Trinidad); Hand-list, i, 1899, 255, part (Venezuela; Guiana). — 



Berlepsch and Stolzmann, Proc. Zool. See. London, 1893, 399 (Lima, 



Peru).— Brabourne and Chubb, Birds South Amer., i, 1912, 66 (Venezuela; 



Brit. Guiana; Brazil). — Chubb, Birds Brit. Guiana, i, 1916, 232 (translation 



of orig. descr. ; crit.). 

 (?) Buteo cabanisii Schlegel, Mus. Pays-Bas, ii. No. 6, livr. 2, 1863, 11, part 



(Guiana). 

 (?) [Aslur] cabanisii Gray, Hand-list, i, 1869, 30, No. 285, part (Guiana; Cayenne; 



Pard, Brazil). 

 Buieo zonocercus (not of Sclater, 1858) L^otaud, Ois. Trinidad, 1866, 9. — Gray, 



Hand-list, i, 1869, 8, No. 65, part (Trinidad). 

 Urubitinga anthracina Lixton, Condor, ix, 1907, 110, in text (National City, 



San Diego County, Calif.). 



BUTEO LINEATUS LINEATUS (Gmelin) 



Eastern Red-shouldered Hawk 



Adult (sexes alike). — Top of head, nape, scapulars, and inter- 

 scapulars, upper and lower back and rump fuscous to fuscous-black, 

 the feathers edged with from pale cinnamon to tawny and to a lesser 

 extent with whitish, these edges most developed on the nape and 

 interscapulars, and absent on the lower back and rump; upper wing 

 coverts dull fuscous to hair brown, barred with grayish white and 

 washed on the inner webs with cinnamomeous ; the lesser coverts at 

 the bend of the wing broadly edged with cinnamon or orange-cin- 

 namon; remiges dull fuscous becoming whitish on the inner webs, 

 especially of the outer primaries, narrowly tipped with white and 

 barred with grayish white, these bars becoming more grayish (light 

 neutral gray) on the inner webs of the secondaries; the fourth primary 

 (from the outside) longest, the fifth next and then the third; the sixth 

 longer than the second; the four outer primaries emarginated on the 

 inner web; upper tail coverts barred broadly dark hair brown and 

 whitish, the lateral ones usually with more white; the median ones 

 often washed with pale tawny; rectrices fuscous-black crossed by four 

 or five narrow grayish white bars and narrowly tipped with the same; 

 lores and cheeks grayish tinged with cinnamomeous, often wholly 

 cinnamomeous with fuscous shaft streaks; chin and middle of throat 

 whitish to pale drab-gray, the feathers broadly tipped with hair brown, 

 these areas being so long as to produce a rather streaked appearance; 

 sides of throat like the nape and interscapulars; breast and upper 

 abdomen varying from light ochraceous-buff barred with very pale 

 buffy white and with prominent fuscous shaft streaks on the breast 

 and sides of upper abdomen to pinkish cinnamon Httle or obscurely 

 barred with pale buffy white on the breast and more distinctly barred 



