256 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



AIMOPHILA ^STIVALIS BACHMANII (Audubon). 

 BACHMAN'S SPARROW. 



Similar to /*. (V. a-sfiiHdls. hut e-oloralioii iiiucli lighter and more 

 rut?ty; gray of upper parts more butty, the streaks clear rusty chestnut 

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

 lateral under parts much more butiy; size ayeraging larger (except 

 bill and feet). 



Yonmj. — ]Much like adults, t)ut chin, throat, chest, sides, and Hanks 

 distinctly buti'y, streaked, especially on chest, with dusk}-; general 

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

 edged with dull brownish buHy instead of ash gray; Aying-coyerts 

 and tertials margined terminally with buffy. 



Adult m^Zc^— Length (skins), 12-1.46-152.40 (135.38); wing, 58.42- 

 63.50 (61.21); tail, 60.96-66.55 (64,01); exposed culmen, 10.92-13.21 

 (12.19); depth of bill at base, 6.35-7.62 (7.11); tarsus, 18.29-20.32 

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



Adxdi feinale.—\^^\\gi\x (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 {^.^'^Y tarsus, 18.54-20.83 

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



Humid diyision of Lower Austral Province, from South Carolina and 

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

 ern Virginia (Campbell and Albemarle counties), ]Mar3dand (]\Iont- 

 gomery County, accidentalh"), 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.). 



Fr'uigilla h<ic)i ma ii i i AuDVBoy, Orn. Biog. ,ii, 1834, 366, pi. 165 (near Charleston, 

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



Peucssa bacliniaiiii Audubon, Synopsis, 1839, 112; Birds Am., oct. ed., iii, 1841, 

 113, pi. 176. 



\_Peucaea^ hachmani Bonaparte, Consp. Av., i, 1850, 481. 



Peuciva ifstivalix Jmckniani Brewstek, Auk, ii, Jan., 1885, 106 (crit.); iii, 1886, 

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

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

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



Peuciva xstivalis bachmaiiii American Ornithologists' I^nion, Check List, 1886, 

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

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

 Co., Texas, breeding, etc.). — Keyes and Williams, Proe. Davenport Acad. 

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

 TarponSprings, Florida; rare in summer, common fall and winter*); vi, 1889, 



^ Twenty-eight specimens. '^ Doubtful. 



^Five soecimens. ■'Later said not U> occur in sunnner. 



