296 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



LOPHORTYX GAMBELII FULVIPECTUS (Nelson) 



Fulvous-breasted Quail 



Adult jym/^.— Similar to that of the nominate race, but with the abdomen 

 more deeply colored— light warm buff ; the pale edging of the scapulars 

 and inner secondaries also huffier and the back slightly more washed 

 with olive-brown.^^ 



Adult /^jwa/^.— Similar to that of the nominate race, but with the ab- 

 domen more deeply colored— light warm buff; the pale edgings of t.he 

 inner remiges also huffier ; and the upperparts more extensively tinged with 

 buffy brown. In the majority of specimens (but not in all) there is a 

 faint but noticeable white line beginning behind the eye and posteriorly 

 limiting the cheeks and sides of the throat, and another along the antero- 

 lateral edge of the crown on each side. The crown and occiput average 

 more rufescent in this race than in any of the others. 



Adult maJe.—Wmg 106-115 (112) ; tail 8^101 (95.6) ; culmen from 

 base 14.8-16.2 (15.4) ; tarsus 30.5-33.0 (31.1) ; middle toe without claw 

 27.1-28.3 (27.7 mm.)." 



Adult female.— Wing 105-118 (110.6); tail 85-98 (89.4); culmen 

 from base 14.9-16.7 (15.7) ; tarsus 29.0-31.3 (30.1) ; middle toe without 

 claw 26.3-26.9 (26.6 mm.).^^ 



i?an^^.— Resident in north-central to southwestern Sonora (Camoa, 

 Obregon, Opodepe, Tesia, Tobari Bay, Agiabampo; 25 miles southeast 

 of Guaymas), intergrading with gambelii near Guaymas. 

 Type locality. — Camoa, Rio Mayo, Sonora. 



Lophorty.v gambelii (not of Gambel) Lawrence, Mem. Boston Soc. Nat. Hist., ii, 

 1874, 307 (Sonora). 



Lophortyx gambeli Belding, Proc. U. S. Nat. Mus., vi, 1884, 344 (Guaj-mas).- 

 Salvin and Godman, Biol. Centr.-Amer., Aves, iii, 1903, 292, part (Santa Bar- 

 bara, Hermosillo, Guaymas, and Rio Mayo, Sonora). 



Callipepla gambeli Cooke, Bird Migr. Mississippi Valley, 1888, 103, part (nw. 

 Mexico).— Allen, Bull. Amer. Mus. Nat. Hist., v, 1893, 23 (Santa Barbara, 

 Sonora)— JouY Proc. U. S. Nat. Mus., xvi, 1894, 790 (Guadalajara, Jalisco). 



Callipepla gambeli fulvipechis Nelson, Auk, xvi. 1899, 26 (Camoa. Rio Mayo, sw. 

 Sonora; coll. U. S. Nat. Mus.); xix, 1902, 388 (crit.).— Thayer and Bangs, 

 Proc. Biol. Soc. Washington, xix, 1906, 18 (Opodepe, north-central Sonora). 



[Lophortyx] fulvipectus Sharpe, Hand-list, i, 1899, 44. 



Lophortyx gambelii fulvipectus van Rossem, Trans. San Diego Soc. Nat. Hist., vi, 

 1931 245 (Sonora— Obreg6n, Tesia, Tobari Bay, Agiabampo) ; vii, 1932, 132 in 

 text' (Sonora; colors of soft parts) .-Peters, Check-list Birds World, ii, 



1934, 46. . 



Lophortyx gambelii gambelii Hellmayr and Conover, Cat. Birds Amer., i, No. 1, 



1942, 235, part (Camoa, Sonora). 



«' These differences hold only in freshly plumaged birds. The buffy tones appear to 

 fade away fairly rapidly so that by winter specimens of fulvipectus are indistinguish- 

 able from gambelii. This is also true of the females. 



" Seven specimens from Sonora. 



** Eleven specimens from Sonora. 



