_The Number of Birds in Different States._--The number of kinds of birds found in any one State depends on the size of the State, its geographical situation, and the varieties of its climate as affected by the topography in reference to mountains, coastlines, etc. The number of bird students and the character of their field studies determine the extent to which the birds of a State have been catalogued and listed. The following list indicates the number of kinds of birds that have been recorded in forty-three of the States and the District of Columbia. The authority for the statement in each instance and the year in which the figures were given is also stated: _Alabama_, 275 (Oberholser, 1909). _Arizona_, 371 (Cooke, 1914). _Arkansas_, 255 (Howell, 1911). _California_, 541 (Grinnell, 1916). _Colorado_, 403 (Cooke, 1912). {123} _Connecticut_, 334 (Sage and Bishop, 1913). _Delaware_, 229 (Rennock, 1908). _District of Columbia_, 293 (Cooke, 1913). _Florida_, 362 (Thurston, 1916). _Idaho_, 210 (Merrill, 1898). _Illinois_, 390 (Cory, 1909). _Indiana_, 321 (Butler, 1898). _Iowa_, 356 (Anderson, 1907). _Kansas_, 379 (Bunker, 1913). _Kentucky_, 228 (Garman, 1894). _Louisiana_, 323 (Byer, Allison, Kopman, 1915). _Maine_, 327 (Knight, 1908). _Maryland_, 290 (Kirkwood, 1895). _Massachusetts_, 369 (Howe and Allen, 1901). _Michigan_, 326 (Barrows, 1912). _Minnesota_, 304 (Hatch, 1892). _Missouri_, 383 (Widmann, 1907). _Nebraska_, 418 (Swenk, 1915). _Nevada_, 250 (Hoffman, 1881). _New Hampshire_, 283 (Allen, 1904). _New Jersey_, 358 (Stone, 1916). {124} _New Mexico_, 314 (Ford, 1911). _New York_, 412 (Eaton, 1914). _North Carolina_, 342 (Pearson and Brimley, '16). _North Dakota_, 338 (Schmidt, 1904). _Ohio_, 330 (Jones, 1916). _Oregon_, 328 (Woodcock, 1902). _Pennsylvania_, 300 (Warren, 1890). _Rhode Island_, 293 (Howe and Sturtevant, 1899). _South Carolina_, 337 (Wayne, 1910). _Tennessee_, 223 (Rhoads, 1896). _Texas_, 546 (Strecker, 1912). _Utah_, 214 (Henshaw, 1874). _Vermont_, 255 (Howe, 1902). _Virginia_, 302 (Rives, 1890). _Wellington_, 372 (Dawson, 1909). _West Virginia_, 246 (Brooks, 1913). _Wisconsin_, 357 (Kumlien and Hollister, 1903). _Wyoming_, 288 (Knight, 1902). For the five remaining States no list of the birds has as yet been issued. {125}