400 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



(69.7); tail, 63.5-Tl (67.7); culmen, 9.5-11 (9.7); tarsus, 16.5-18.6 

 (17.2); middle toe, 9.6-11.5 (10.5).« 



Adult female.— 'L&^gi}i (skins), 119-137 (122.2); wing, 63.5-68.5 

 (66.6); tail, 61-67 (64.4); culmen, 8.5-10 (9.5); tarsus, 15-18 (16.7); 

 middle toe, 8.5-11 (9.9).'' 



Great Plains and Rocky Mountain districts of central North Amer- 

 ica, from New Mexico and Kansas to the Kenai Peninsula, Alaska, and 

 province of Mackenzie (Slave Lake district); east to eastern Kansas 

 (Topeka, etc.), Iowa (Mitchell and Winnebago counties),'' eastern South 

 Dakota, western Minnesota, Manitoba, and southwestern Keewatin 

 (lower Echimamish) ; west to Salt Lake Valley, Utah. 



Parus septenirionalis Haekis, Proc. Ac. Nat. Sci. Phila., ii, Dec. 1845, 300 (near 

 mouth Yellowstone K., w. North. Dakota; coll. Ac. Nat. Sci. Phila.); Ann. 

 and 31ag. N. H., xvii, 1846, 452, 454. — Baikd, in Stansbur}''s Eep. Great 

 Salt Lake, 1852, 316 (Yellowstone E.); Rep. Pacific R, R. Surv., ix, 1858, 

 389; Cat. N. Am. Birds, 1859, no. 289; Review Am. Birds, 1864, 79.— Cassin, 

 lUustr. Birds, Tex., Cal., etc., 1853, 17, 80, pi. 14.— Sclatee, Cat. Am. Birds, 



1862, 14 Fort Riley, Kansas).— Haydfn, Trans. Am. Philos. Soc, xii, 1862, 

 164 (Upper Missouri Valley). — Blakiston, Ibis, 1862, 5 (Saskatchewan); 



1863, 67 (Saskatchewan).— (??) Hoy, Ann. Rep. Smithsonian Inst, for 1864 

 (1865), 438 (Missouri). -Stevenson, Rep. U. S. Geol. Surv. for 1870 (1871), 

 464 (Fort Bridger, Green R., etc., Wyoming). — Aiken, Proc. Bost. Soc. 

 N. H., xvi, 1872, 195 (Colorado).— Mbhriam, Rep. U. S. Geol. Surv. Terr, 

 for 1872 (1873), 713 (Utah).— (?) Snow, Birds, Kansas, 1873, 6. 



Lophophanes septenrionalis Baied, in Stansbury's Rep. Great Salt Lake, 1852, 332. 



Parus atricapillus, var. septenirionalis Allen, Bull. Mus. Comp. Zool., iii, 1872, 

 166 (Ogden, Utah), 174 (Kansas; Colorado; Utah); Am. Nat., vi, 1872, 396, 

 in text (Ogden and Weber R., Utah) ; Proc. Bost. Soc. N. H., xvii, 1874, 49 

 (Yellowstone, Musselshell, and Heart rivers, Montana). — Baikd, Bhbwee, 

 and RiDQWAY, Hist. N. Am. Birds, i, 1874, 99.— Coues, Birds N. ^N., 1874, 

 21.— Tkippe, in Coues's Birds N. W., 1874, 230 (Colorado; plains up to 9,000 

 ft.).— Nelson, Proc. Bost. Soc. N. H., xvii, 1875, 339 (Utah). 



Parus var. septentrionalis Baied, Beewee, and Ridgway, Hist. N. Am. Birds, i, 

 1874, pi. 7, fig. 2. 



a Twenty specimens. 



6 Sixteen specimens. 



Specimens from the Great Plains (Alberta and Saskatchewan to Nebraska) and 

 those from the Rocky Mountains (Montana to New Mexico) compare in average 

 measurements as follows: 



The coloration appears to be quite the same in the two series when specimens of 

 corresponding season are compared. 

 « Breeding. 



