496 
BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Birds Europe, v, 1837, pl. 417 and text; Birds Great Brit., v. 1873, pl. 70 and 
text.—AupuBon, Orn. Biog., iv, 1838, 74, pl. 309; Synopsis, 1839, 318; 
Birds Am., 8vo. ed., vii, 1844, 97, pl. 433.—Scninz, Eur. Faun., 1840, 373. 
—Navumann, Vég. Deutschl., x, 1840, 89, pl. 252.—Szuys-LonecHamps, 
Faune Belge, 1842, 150.—Macamivray, Man. Brit. Orn., pt. ii, 1842, 231; 
Brit. Birds, v, 1852, 638.—YARRELL, Brit. Birds, iii, 1843, 396; 2d ed., iii, 
1845, 504.—Giraup, Birds Long Is., 1844, 347.—Gray, List Birds Brit. Mus., 
Anseres, 1844, 177; Cat. Brit. Birds, 1863, 240.—ScnueceL, Rev. Crit., 
1844, p. cxxix; Vog. Nederl., 1854, 608, pl. 357; Mus. Pays-Bas, vi, no. 24 
(Sternae), 1864, 17.—Ds Kay, N. Y. Zool., Birds, 1844, 298, pl. 125, figs. 
275, 276.—Giraup, Birds Long Island, 1844, 342.—HEwitson, Eggs Brit. 
Birds, ii, 1846, 427, pl. 120, fig. 1—Reicnensacu, Natatores, 1848, pl. 19, 
figs. 269-278; Syst. Nat., 1850, pl. 4; Av. Syst. Nat., Longipennes, 1852, 
p. v.—JarDINE, Contr. Orn., 1849, 80 (Bermudas, summer resident); 1850, 
6 (Bermudas).—Dretanp, Ois. Eur., ii, 1849, 342.—THompson, Birds 
Treland, iii, 1851, 281.—KsaErBO.uine, Danm. Fugle, 1852, 329, pl. 40A; 
Suppl., 1854, pl. 20, fig. 3—Herverin, Syst. Ueb., 1856, 70 (n. Egypt).— 
Jones, Naturalist in Bermuda, 1859, 91.—Buanp, An. Rep. Smithson. Inst., 
1859, 288 (Bermudas).—LinDERMAYER, Vég. Griechenl., 1860, 178.—Hin7z, 
Journ. fiir Orn., 1861, 229 (migrations).—Covgs, Proc. Ac. Nat. Sci. Phila, 
1862, 547 (monogr.); Check List, 1873, no. 565; 2d ed., 1882, no. 797; 
Birds Northwest, 1874, 680.—VeERRILL, Proc. Essex Inst., iii, 1862, 160 
(coast Maine, breeding).—SuNDEVALL, Svensk Fogl., 1863, pl. 48, fig. 4.— 
Lawrence, Ann. Lyc. N. Y., viii, 1867, 299 (vicinity New York City); 
Proc. U. S. Nat. Mus., viii, 1885, 623 (Guadeloupe).—_JERDon, Birds India, 
iii, 1864, 8839.—DrcGLanp and GERBE, Orn. Eur., ii, 1867, 456.—Locue, Expl. 
Sci. Algér., Ois., ii, 1867, 201.—Fritscu, Vég. Eur., 1870, 458, pl. 54, fig. 4.— 
Ewes and Bucxtey, Ibis, 1870, 337 (Constantinople, Turkey).—Swinnoez, 
Ibis, 1871, 422 (China).—Gopman, Ibis, 1872, 222 (Canary and Madeira).— 
Patm&n, Finlands Fogl., 1873, 568.—Taczanowskx1, Journ. fiir Orn., 1873, 
111 (e. Siberia)—Hensuaw, Zool. Exped. West of 100th Merid., 1875, 
486 (San Pedro, Arizona, Sept. 3, 1872).—Bamery (H. B.), Bull. Nutt. 
Orn. Club, i, 1876, 28 (Cobb’s Island, Virginia, breeding).—Lanepon, Birds 
Cincinnati, 1877, 18.—Ratusun (F. R.), Revised List Birds Centr. N. Y., 
1879, 41 (Seneca Lake, 1 spec., June; Owasco Lake).—Cory, Birds Bahama 
Is., 1880, 211; Auk, v, 1888, 77 (accidental in Bahamas; references); Cat. 
West Ind. Birds, 1892, 82 (Abaco Island, Bahamas; Jamaica); Pub. 137 
Field Mus. N. H., 1909, 194 (Aruba, Dutch West Indies).—Szxzsoum, Ibis 
1882, 230 (Astrakhan); Hist. Brit. Birds, iii, 1885, 280.—BreEwsteEr, Proc. 
Bost. Soc. N. H., xxii, 1883, 401 (Magdalen Islands, breeding; habits; 
Bull. Mus. Comp. Zool., xli, no. 1, 1902, 25 (San José del Cabo, Lower Cali- 
fornia, Sept. 5-30).—Srverrzow, Ibis, 1883, 77 (Pamir range, central 
Asia, breeding).—Marsuau, Ibis, 1884, 425 (Chamba, n. w. Himalayas).— 
Bairp, Brewer, and Ripeway, Water Birds N. Am., ii, 1884, 295.— 
Rappe, Orn. Caucas., 1884, 486.—ButTter, Bull. 2, Brookville Soc. 
N. H., 1886, 14 (Franklin Co., Indiana, 1 spec. June 3, 1884).—Szron, 
Auk, iii, 1886, 147 (w. Mantioba, breeding).—AMERICAN ORNITHOLOGISTS’ 
Union, Check List, 1886, and 2d ed., 1895, no. 70; 3d ed., 1910, p. 44.— 
Satvaport, Ucc. Ital., 1887, 276—Evermann, Auk, v, 1888, 346 (Lake 
Maxinkuckee, Indiana, May 11).—Pinpar, Auk, vi, 1889, 311 (Fulton 
Co., Kentucky, summer resident).—Suicx, Auk, vii, 1890, 327 (Seven 
Mile Beach, New Jersey, breeding)—Koernie, Journ. fiir Orn., 1890, 457 
(Canary Islands); 1893, 98 (Tunis).—Tuompson, Proc. U. 8. Nat. Mus., 
xili, 1980, 469 (Lake Winnipeg, etc., Manitoba,- breeding).—GaTKE, 
