568 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Chordediles popetue Coues, Check List, 2d ed., 1882, no. 399, part. 



C[hordediles] popetue Coubs, Key N. Am. Birds, 2d ed., 1884, 454, part. 



Chwdeiles virginianus popetue Mearns, Bull. Nutt. Om. Club, iv, 1879, 195 (Ft. 

 Klamath, Oregon). 



Chordeiles henryi (not of Cassin) Mbrriam, Sixth An. Rep. U. S. Geol. Surv. 

 Terr., 1873, 692 (Marsh Creek, etc., Idaho; Upper Geyser Basin, Wyoming). 



Chordeiles popetue, var. henryi Baibd, Bhewek, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 404, part, pi. 46, fig. 4. — ^Henshaw, Ann. Lye. N. Y., xi, 

 1874, 8, part (Utah). 



[Chordeiles\ henryi Shaepe, Hand-list, ii, 1900, 79, part. 



Chordeiles popetue . . . p. henryi Ridgway^ Om. Fortieth Parallel, 1877, 568, 

 part (Truckee Valley and East Humboldt Mts., Nevada). 



Chordeiles popetue henryi Ridgwat, Bull Essex Inst., vii, Jan., 1875, 11, 15 (Carson 

 City and Truckee Valley, Nevada), 30 (Salt Lake Valley, Utah); Proc. U. S. 

 Nat. Mus., iii, 1880, 188, part; Norn. N. Am. Birds, 1881, no. 357, part. 



C[hordeiles] popetue henryi Henshaw, Ann. Rep. U. S. Geol. Surv. W. 100th Merid. 

 for 1879, 310 (California; Oregon; Washington). 



[Chordeiles mrginiarms.] Var. henryi Coues, Key N. Am. Birds, 1872, 181, part. 



Chordeiles virginianus . . . var. henryi Coues, Check List, 1874, no. 267a, part. 



[Chordeiles virginianus] b. henryi Coues, Birds Northwest, 1874, 264, part. 



Chordeiles virginiarms henryi Stbjnegee, Auk, ii, April, 1885, 182, part. — ^American 

 Ornithologists' Union, Check List, 1886 (and 2d ed., 1895) no. 420o, part. — 

 Anthony, Auk, iii, 1886, 165 (Washington Co., Oregon). — ^Evebmann, Auk, 

 iii, 1886, 180 (Ventura Co., California, breeding). — Fannin, Check List Birds 

 Brit. Col., 1891, 29 (Brit. Columbia).— Palmer (T. S.), Auk, ix, 1892, 309 

 (Grays Harbor, Washington). — Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 

 515, part (Rio Escondido, Nicaragua, Oct. 28).— Geinnell (J.), Pacific 

 Coast Avifauna, no. 3, 1902, 40 (California range). — Saunders, Auk, xxviii, 

 1911, 38 (Gallatin Co., Montana). — Cameron, Auk, xxiv, 1907, 389 (Cameron 

 and Dawson counties, Montana; habits). — ^Edson, Auk, xxv, 1908, 434 

 (Bellingham Bay, Washington, summer resident). 



C[hordeiles] virginianus henryi Ridgway, Man. N. Am. Birds, 1887, 301, part. 



C[hordeiles] v[irginianvs] henryi Bailey (Florence M.), Handb. Birds W. U. S., 

 1902, 227, part. 



Chordediles popetue henryi Coues, Check List, 2d ed., 1882, no. 400, part. 



C[hordediles] p[opetue] henryi Coues, Key N. Am. Birds, 2d ed., 1884, 454, part. 



Chordeiles virginianus hesperis Grinnell (J.), Condor, vii, Nov., 1905, 170 (Bear 

 Lake, San Bernardino Mts., California; coll. J. Grinnell); Univ. Calif. Pub. 

 Zool., V, 1908, 67 (San Bernardino Mts., 4,500-9,000 ft.; habits; crit.).— 

 Rat, Auk, xxiii, 1906, 414 (Merced, California). — American Ornitholo- 

 gists' Union Committee, Auk, xxv, 1908, 347; Check List, 3rd ed., 1910, 

 199.— Taylor, Univ. Calif. Pub. Zool., vii, 1912, 369 (Humboldt Co., Nevada; 

 habits). ' 



Chordeiles virginianus sennetti (not of Coues) Saundebs, Condor, xiv, 1912, 27 

 (Gold Creek, Powell Co., s. w. Montana, Aug. 26). 



CHORDEILES VIRGmiANUS SENNETTI (Coues). 

 SENNETT'S ITIGHTHAWE. 



Similar to 0. v. hesperis, but general aspect of upper parts still lighter 

 and more grayish, resulting both from lighter shade of the darker 

 markings and greater profusion and lighter color of the paler ones, 

 which have much less of buffy intermixture; general aspect of under 



