BIRDS OF NORTH AND MIDDLE AMERICA 49 



(1899), 219 (Limoncito, Sinaloa).— Salvin and Godman, Biol. Centr.-Amer., 

 Aves, iii, 1903, 279, pi. 72 (Mazatlan and Presidio de Mazatlan, Sinaloa; San 

 Bias and Santiago, Tepic).— Miller, Bull Amer. Mus. Nat. Hist., xxi, 1905, 343 

 (Escuinapa, etc., s. Sinaloa; habits); xxii, 1906, 163 (Sayapa, Durango, 2,500 

 feet).— McLellan, Proc. California Acad. Sci., ser. 4, xvi, 1927, 6 (Labrados, 

 Sinaloa) .—Peteks, Check-list Birds of World, ii, 1934, 18, part (Sinaloa to 

 Jalisco).— Bailey and Conover, Auk, Iii, 1935, 424, in text (Durango, Mexico).— 

 VAN RossEM, Condor, xliv, 1942, 11 in text (tax.; fig. of head). 



0\:rtal%s\ wagleri Ridgway, Man. North Amer. Birds, 1887, 208.— Mendizabal, Rev. 

 Soc. Mex. Hist. Nat., i. No. 3, 1940, 180, in text (Mexico). 



[Ortalis] wagleri Sharpe, Hand-list, i, 1899, 17. 



Ortalis wagleri wagleri Hellmayr and Conover, Cat. Birds Amer., i, No. 1, 1942, 

 168 (syn. ; distr.). 



Ortalis vetula maccalli (not Ortalida mccalli Baird) Bailey, Auk, xxiii, 1906, 385 

 (San Bias, Tepic). 



ORTALIS WAGLERI GRISEICEPS van Rosscm 



Northern Rufous-bellied Ci-iachalaca 



Adult (sexes alike). — Similar to that of Ortalis wagleri wagleri but 

 with the head and upper hindneck paler — ashy neutral gray to pale slate 

 gray and with less brownish wash; upperparts sHghtly grayer, especially 

 in worn plumage; breast and lower throat more grayish, less greenish — 

 ashy deep grayish olive ; abdomen, sides, flanks, thighs, and under tail 

 coverts averaging slightly paler than in the nominate race, averaging 

 more hazel than russet. 



Juvenal. — None seen. 



Downy young. — None seen. 



Adult male. — Wing 256-272; tail 277-279; exposed culinen 26-27; 

 tarsus 67, 67; middle toe without claw 54—60 mm.^^ 



Adult female— Wing 248-258 (253) ; tail 265-288 (275) ; exposed 

 culmen 24-26 (24.8) ; tarsus 67-70 (68.5) ; middle toe without claw 

 52-58 (56 mm.). 5* 



Range. — Resident from southern Chihuahua (Hacienda de San 

 Rafael) and southern Sonora (Alamos) south into northern Sinaloa 

 for an undetermined distance. 



Type locality. — Alamos, Sonora, Mexico. 



Ortalida wagleri (not of Gray, 1867) Lawrence, Mem. Boston Soc. Nat. Hist., ii, 



1874, 306 part (Sonora).— Peters, Check-list Birds of World, ii, 1934, 18 



part (Chihuahua and Sonora). 

 Ortalis ivagleri (not of Gray, 1867) van Rossem, Trans. San Diego Soc. Nat. 



Hist., vi. No. 19, 1931, 244 (Sonora, Mexico). — Peters, Check-list Birds of 



World, ii, 1934, 18, part. 

 Ortalis wagleri griseiceps van Rossem, Bull. Mus. Comp. Zool., Ixxvii, 1934, 431 



(Alamos, Sonora, Mexico; crit.). — Hellmayr and Conover, Cat, Birds Amer., 



i. No. 1, 1942, 167 (syn,; distr.). 



"' Two specimens from Sonora. 



"' Four specimens from Sonora and Chihuahua. 



