514 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



Strigiceps hudsonicus Salle and Parzxjdaki, Cat. Oiseaux Mexique, 1862, 1 

 (Mexico). 



Circus cyaneus hudsonius Schlegel, Mus. Pays-Bas, ii, No. 13, livr. 2, 1863 

 2 (monogr.); No. 36, livr. 10, 1873, 48.— Allen, Bull. Mus. Comp. 

 ZooL, iii, 1872, 140 (Topeka and Fort Hayes, Kans.) ; Proc. Boston Soc. 

 Nat. Hist., xvii, 1874, 34 (Montana and Dakota). — Coues, Key North 

 Amer. Birds, 1872, 210; Check List North Amer. Birds, 1873, No. 333; 

 ed. 2, 1882, No. 489; Key North Amer. Birds, ed. 2, 1884, 521.— Ridgway, 

 Bull. Essex Inst., v, 1873, 186 (Colorado); in Baird, Brewer, and Ridgway, 

 Hist. North Amer. Birds, iii, 1874, 214; Ann. Lye. Nat. Hist. New York, x, 

 1874, 380 (Illinois; res.); Bull. Essex Inst., vii, 1875, 13 (Carson, Nev.), 15 

 (Truckee Valley, Nev., breeding), 31 (Salt Lake Valley, Utah; summer), 

 34 (Parleys Peak, Utah; summer), 38 (w. Nevada, breeding). — Lawrence, 

 Mem. Boston Soc. Nat. Hist., ii, 1874, 298 (Mazatldn, Sinaloa); U. S. Nat. 

 Mus. Bull. 4, 1875, 43 (Tehuantepec City; Oaxaca, winter). — Nelson, Proc. 

 Boston Soc. Nat. Hist., xvii, 1875, 347 (Salt Lake City), 354 (n. of Elko, 

 Nev.); Bull. Essex Inst., viii, 1876, 118 (ne. Illinois; migr.). — Bendire, 

 Proc. Boston Soc. Nat. Hist., xix, 1877, 134 (Camp Harney, Oreg. ; fairly 

 abund. ; breeds). — Sennett, U. S. Geol. and Geogr. Surv. Terr. Bull. 4, No. 

 1, 1878, 41 (lower Rio Grande, Tex.). — Gibbs, U. S. Geol. and Geogr. Surv. 

 Terr. Bull. 5, 1879, 490 (Michigan; abund., summer). — Mearns, Bull. 

 Nuttall Orn. Club, iv, 1879, 195 (Fort Klamath, Greg.).— Scott, Bull. 

 Nuttall Orn. Club, iv, 1879, 224 (Long Beach, N. J., breeding).— Cory, 

 Birds Bahama Islands, 1880, 128 (Inagua). — Wheaton, Rep. Birds Ohio, 

 1882, 417, 579 (Ohio).— Hartlaub, Journ. fiir Orn., 1883, 264 (Portage Bay, 

 Alaska).— Reid, U. S. Nat. Mus. Bull. 25, 1884, 217 (Bermudas, sev. 

 records). — Stearns, Bird Life in Labrador, ca. 1890, 44 (Labrador: Dead 

 Island Harbor). — Hartert, Vog. pal. Fauna, ii, 1911, 1142 (monogr.). — 

 Oberholser, Auk, xxxv, 1918, 206; xxxvi, 1919, 82 (crit.) ; Journ. Washington 

 Acad. Sci., ix, 1919, 554, in text; Bird Life Louisiana, 1938, 178 (Louisiana; 

 common winter res.; distr. ; nests; food; habits). — Swann, Syncpt. List 

 Accip., pt. 1, 1919, 11; ed. 2, pt. 1, 1921, 18; Monogr. Birds Prey, i, 1925, 

 107 (monogr.). — Howell, Auk, xxxviii, 1921, 256 (Royal Palm Hammock, 

 Fla.; uncommon winter vis.); Birds Alabama, 1924, 130; ed. 2, 1928, 130 

 (distr.; habits; Alabama).— Barbour, Mem. Nuttall Orn. Club, No. 6, 1923, 

 44 (Cuba; winter res.). — Dawson, Birds California, stud, ed., iii, 1923, 1652 

 (genl.; California). — Jackson, Auk, xl, 1923, 482 (Mamie Lake, Wis.; 

 seen).— Bailey, Birds Florida, 1925, 68, pi. 37 (fig.; distr.; Florida).— Sim- 

 mons, Birds Austin Region, 1925, 97 (Austin, Tex.; habits; descr.). — Bailey, 

 Condor, xxviii, 1926, 123 (St. Michael, Alaska).— Witherby, Brit. Birds, 

 xix, 1926, 314 (Port Arthur, Ontario; 1 male with 2 hens). — Sutton, Birds 

 Pennsylvania, 1928, 57 (stat.; habits; Pennsylvania). — Stenhouse, Scottish 

 Nat., 1930, 77, in text (spec, from Franklin's expedition; no longer to be 

 found in mus.), 79 (male, Carlton House, from Franklin's second expedition; 

 spec). — [Arthur], Birds Louisiana, 1931, 204 (descr.; status: Louisiana). — 

 Peters, Check-list Birds of World, i, 1931, 265 (distr.): Bull. Mus. Comp. 

 Zool., Ixxi, 1931, 31 (Fruitdale, Panama). — Griscom, Bull. Mus. Comp. 

 Zool., Ixxii, 1932, 316 (Perm6, Panama); Ixxviii, 1935, 301 (Panama, re- 

 corded throughout the country). — Compton, Univ. California Publ. Zool., 

 xlii, 1938, 176, 179, in text, 185, 192, 198, 201, 205 (pterylosis).— van Tyne, 

 Occ. Pap. Mus. Zool. Univ. Michigan, No. 379, 1938, 10 (Michigan; com- 

 mon summer res.; few winter). — Sutton and Burleigh, Occ. Pap. Mus. 



