BIRDS OF NORTH AND MIDDLE AMERICA 289 



21, 1933, 42 (sw. California; Pacific slope; fairly common res.; now rather 

 rare). — Swann, Synopt. List Accip,, pt. 2, 1919, 49; Synop. Accip., ed. 2, 

 1922, 81; Monogr. Birds Prey, i, 1928, 400 (monogr.). — Bryant, Condor, 

 xxiii, 1921, 65 (eating caterpillars). — Dawson, Birds California (stud, ed.), 

 iii, 1923, 1683 (genl.; California). — Grinnell and Storer, Anim. Life Yo- 

 semite, 1924, 289 (descr. ; distr.; habits; Yosemite). — Hanna, Condor, xxvi, 

 1924, 148, iu text (egg weight). — Gardner, Proc. U. S. Nat. Mus., Ixvii, art. 

 19, 1925, pi. 2 (structure of tongue). — Wyman and B-ctrnell, Field Book 

 Birds Southwestern United States, 1925, 102 (descr.; chars.). — Taverner, 

 Birds Western Canada, 1926, 194, in te.xt (distr.); Birds Canada, 1934, 127, 

 in text (Canada; descr.). — Dixon, Condor, xxx, 1928, 228 (life hist.). — 

 Grinnell, Dixon, and Linsdale, Univ. California Publ. Zool., xxxv, 1930, 

 188 (distr.; Lassen Peak region, n. California). — Peters, Check List Birds of 

 World, i, 1931, 233.— Bent, U. S. Nat. Mus. Bull. 167, 1937, 203 (life hist.).— 

 Groebbels, Der Vogel, ii, 1937, 171 (data on breeding biol.). — Htjey, Auk, 

 Iviii, 1941, 270 (n. Lower California).— Moore, Condor, xlv, 1943, 233 

 (Prospect Park, Redlands, Calif.). — Grinnell and Miller, Pacific Coast 

 Avif., No. 27, 1944, 101 (California; permanent resident). — Hill, Auk, Ixi, 

 1944, 230 (meas.). — van Rossem, Occ. Pap. Mus. Zool. Louisiana [State 

 Univ., No. 21, 1945, 290 (Sonora; hypothetical). — Woodbury and Russell, 

 Bull. Univ. Utah, xxxv, 1945, 37 ("Navaho Country," se. Utah and ne. 

 Arizona; very rare, probably accidental). 



Buteo lineatus b. elegans Coues, Birds Northwest, 1874, 355. 



Bideo lineatus /? elegans Ridgway, Orn. 40th Parallel, 1877, 582 (Sacramento 

 Valley); in Belding, Proc. U. S. Nat. Mus., i, 1879, 436 (Stockton, Calif.; 

 descr. nest). 



Buteo elegans lineatus Anthony, Zoe, iv, 1893, 234 (n. Lower California, s. to 

 Ensenada). 



Pcecilopternis elegans Goode, U. S, Nat. Mus. Bull. 20, 1883, 337. 



BUTEO LINEATUS TE5ANUS Bishop 



Texas Red-shouldered Hawk 



Adult (sexes alike). — Similar to that of Buteo lineatus elegans, but 

 with the margin of the feathers of the head, nape, scapulars, inter- 

 scapulars, and upper back more richly rufous and broader, giving a 

 more rufous appearance to the whole; breast with small buffy spots or 

 broken bars; the shaft lines of the breast feathers conspicuously dark. 



Juvenal (sexes alike). — Similar to that of Buteo lineatus lineatus, but 

 slightly blacker above and with the underparts more heavily spotted 

 and with the spotting extending over the thighs. 



Natal dovm. — Similar to that of Buteo lineatus lineatus. 



Adult male.—Wmg 302-313 (309) ; tail 181-198 (190.1) ; culmen from 

 cere 20.1-22.0 (21); tarsus 73.3-76.3 (75.4); middle toe without claw 

 32.4-37.3 (34.9 mm.) (6 specimens). 



Adult jemale.—Wmg 329.6-337 (334.2); tail 208-218.9 (212.6); cul- 

 men from cere 22-23 (22.6); 79.5-82 (80.5); middle toe without claw 

 39-42 (40.1 mm.) (3 specimens). 



^^ Range. — Resident (?) in southeastern and south-central Texas from 

 Brownsville and Corpus Christi to the vicinity of San Antonio south 



