256 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



AIMOPHILA ^STIVALIS BACHMANII (Audubon). 

 BACHMAN'S SPARROW. 



Similar to P. a', it/stlva //'■•<, but coloration much lighter and more 

 rustjr; gray of upper parts more buff}', the streaks clear rusty chestnut 

 without black mesial lines (except, sometimes, on back) ; anterior and 

 lateral under parts much more bufly; size averaging larger (except 

 bill and feet). 



YouiKj. — ]Much like adults, but chin, throat, chest, sides, and flanks 

 distinctly buffj^, streaked, especially on chest, with dusky; general 

 color of upper parts duller, more streaked with dusky, the feathers 

 edged with dull brownish buffy instead of ash gray; wing-coverts 

 and tertials margined terminally with buffy. 



Adult maZt.— Length (skins), 12 J:. 46-1 5;^. 40 (135.38); wing, 58.42- 

 63.50 (61.21); tail, 60.96-66.55 (64.01); exposed culmen, 10.92-18.21 

 (12.19); depth of bill at base, 6.35-7.62 (7.11); tarsus, 18.29-90.33 

 (19.30); middle toe, 14.48-15.75 (14.99).^ 



^lr/(^/^/c'//;(^Z,,.— Length (skins), 124.46-142.24 (135.64); wing, 57.91- 

 60.45 (59.18); tail, 60.96-66.04 (63.75); exposed culmen, 10.92-12.45 

 (11.68); depth of bill at base, 6.35-7.11 (6.86); tarsus, 18.54-20.83 

 (19.56); middle toe, 14.48-15.24(14.99).' 



Humid division of Lower Austral Province, from South Carolina and 

 northern Georgia and the Gulf coast (west of Florida) north to south- 

 ern Virginia (Campbell and Albeiparle counties), Maryland (Mont- 

 gomery County, accidentally), southern Indiana (north to Parke, 

 Putnam, Monroe, Brown, and Franklin counties), southern Illinois 

 (north, locally, at least to parallel of 40^), and southeastern Iowa; 

 west to middle Texas (Cook and Concho counties, etc.); in winter, 

 south into Florida (as far as Lake Arbuckle, Tarpon Springs, etc.). 



FringiUa bachmanii Audubon, Orn. Biog., ii, 1834, 366, pi. 165 (near Charleston, 

 South Carolina; type in U. S. Nat. Mus.) . 



Peuciea hacltmanii Audubon, Sjaiopsis, 1839, 112; Birds Am., oct. ed., iii, 1841, 

 113, pi. 176. 



IPeitcaea} bachmuni Bonaparte, Consp. Av., i, 1850, 481. 



Peuava u'divalis bachmani Bkewstee, Auk, ii, Jan., 1885, 106 (crit.) ; iii, 1886, 

 110 (Franklin, w. North Carolina; crit.).— Fox, Auk, iii, 1886, 318 (Koane 

 Co., Tennessee; Apr.). — Bendike, Auk, v, 1888,351 (Greensboro, Alabama; 

 descr. nest and eggs). — Neiieling, Our Native Birds, etc., ii, 1896, 148. 



Feucaa tMioalis bachmani i American Ornithologists' Union, Check List, 1886, 

 no. 575«. — Lloyd, Auk, iv, 1887,292 (e. Concho Co., s.w. Texas, breeding). — 

 Cooke, Bird Migr. Miss. Val. , 1888, 207 (Pierce City, Missouri ; e. part Concho 

 Co., Texas, breeding, etc.). — Keves and Williajis, Proc. Davenport Acad. 

 Sci.,v, 1888, (32) (Des Moines, Iowa, breeding)".— Scott, Auk, v, 1888, 186 

 Tarpon Springs, Florida; rare in summer, common fall and winter ') ; vi, 1889 



1 Twenty-eight specimens. * Doubtful. 



■^Five specimens. * Later said nut to occur in summer. 



