BIRDS OF NORTH AND MIDDLE AMERICA. 397 



Passerdla lomisendl sckixUicea Brewster, Bull. Nutt. Orn. Club, vii, Dec, 1882, 



197 (Tucson, Arizona, Feb.). 

 \_Passerella townsendii .~\ \'ar. schistacen 8now, Birds Kansas*, M ed., 1875, 7 (rare 



migrant). 

 IPasmrella nnaktschniDls.'] Subsp. i^r. Pcmirelln schistacea Sharpe, Cat. Birds 



Brit. MuB., xii, 1888, 720. 



PASSERELLA ILIACA MEGARHYNCHA (Baird). 

 THICK-BILLED FOX SPARROW. 



Similar to P. i. schistacea in coloration, but larger, with the bill much 

 larger and relatively thicker. 



Adult maZe.— Length (skins), 167.64-182.88 (173.74); wing, 79.26- 

 86 87 (83.06); tail, 76.71-86.87 (81.79); exposed culmen, 12.19-13. 72 

 (12.70); depth of bill at base, 12.45-13.21 (12.70); tarsus, 23.11-24.89 

 (24.13); middle toe, 14.99-16.76 (15.75); hind claw, 10.41-12.70 (11.43).^ 



Adult female.— 'Length (skins), 165.10-192.02 (175.51); wing, 75.44- 

 85.60 (80.26); tail, 76.71-88.65 (81.03); exposed culmen, 11.43-13.46 

 (12.70); depth of bill at base, 12.19-12.70 (12.45); tarsus, 23.11-24.89 

 (23.88); middle toe, 14.99-15.75 (15.49); hind claw, 10.67-13.46 (12.19).^ 



Breeding on the Sierra Nevada (both slopes), from Mount Shasta 

 southward; in winter, beyond the Sierras as far as Los Angeles County, 

 California. 



Passerella schistacea Baird, Rep. Pacific R. R. Surv., ix, 1858, 490, part (Fort 

 Tejon,California).— Xantus, Proc. Ac. Nat. Sci. Phila., 1859, 376 (FortTejon). 



[Pasgerella iliaca.'] Var. schistacea (not Passerella schistacea Baird) CouES, Key 

 N. Am. Birds, 1872, 147, part. 



Passerella townsendi . . . var. schistacea Coues, Check List, 1873, no. 189a, part. 



[Passerella townsendii var. .sc/iistacfa] b. schistacea Coues, Birds N. W., 1874, 162, 

 part (in synonomy). 



P.[asserella'\ megarhynchus Baird, Rep. Pacific R. R. Surv., ix, 1858, 925, in text 

 (FortTeion, California; U. S. Nat. Mus.). 



Passerella megarhynchus Baied, Cat. N. Am. Birds, 1859, no. 376a; Birds N. Am., 

 1860, atlas, pi. 69, fig. 4.— Cooper, Orn. Cal., 1870, 222.— Baird, Brewer, 

 and Ridgway, Hist. N. Am. Birds, iii, 1874, 516 (centr. Sierra Nevada, 5,000- 

 7,000 ft.). 



Passerella niegarhyncha Ridgway, Orn. 40th Parallel, 1877, 485 (Carson City, 

 Nevada); Proc. U.S. Nat. Mus., i, 1879,391 (Calaveras Co., California). 



Passerella toimisendi,y a,r. megarhynchus Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 57. 



Passerella toumsendi megarhynchus Goode, Bull. U. S. Nat. Mus. , no. 20, 1883, 333. 



Passerella iliaca megarhynchus Ridgway, Bull. Essex. Inst., vi, Oct., 1874, 173, 

 174 (e. slope Sierra Nevada). 



Passerella iliaca, var. megarhyncha Henshaw, Ann. Rep. Wheeler's Survey, 1877, 

 1318. 



Passerella iliaca megarhyncha Ridgway, Proc. U. S. Nat. Mus., iii, Aug. 24, 1880, 

 181; Norn. N. Am. Birds, 1881, no. 2356.— Henshaw, Bull. Nutt. Orn. Club, 

 iii, 1878, 7. — Coues, Check List, 2d ed., 1882, no. 285. — American Orni- 

 thologists' Union, Check List, 1886, no. 5856. — Townsend, Proc. U. S. Nat. 

 Mus., X, 1887, 220 (Mount Shasta, n. California, breeding). — Bendirb, Auk, 



' Nine specimens. ^ Seven specimens. 



