106 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Downy young. — Upper parts pale brownish buff irregularly mottled 

 with black, this forming a distinct marbling on crown and occiput, 

 where the ground-color is lighter and clearer buff; forehead and 

 superciliary region (broadly), sides of head, and under parts immacu- 

 late buff; a narrow postocular streak of black terminating posteriorly 

 in a large irregular spot or blotch of black. 



Adult maZe.— Wing, 138-154 (146.7); tail, 57-69 (65.4); culmen, 

 19-22 (20.6); tarsus, 37-40.5 (38.4); middle toe, 17.5-19.5 (18.3).« 



Adult female.— Wmg, 143-155 (148.2); tail, 61-67 (64.2); culmen, 

 21-22.5 (21.9); tarsus, 37-39 (38.3); middle toe, 17-20 (18.5).^ 



Arid plains of west-central United States, breeding from western 

 Nebraska and northern Montana, south to northern New Mexico 

 and northwestern Texas; wintering from northern California and 

 southern Texas to southern Lower California (San Telmo; Tia Juana; 

 La Paz) mid northern Mexico (Hermosillo, Sonora; Matamoros, Ta- 

 maulipas; Zacatecas). Accidental in Massachusetts (Chatham, Oct. 

 28, 1916). 



Charadrius montanus Towsend (J. K.), Journ. Ac. Nat. Sci. Phila., \di, 1837, 192 

 ("central table-land of the Rocky Mountains," i. e., near Sweetwater lliver, 

 Wyoming); viii, 1839, 156; Narrative, 1839, 349. — Ornithological Commit- 

 tee, Journ. Ac. Nat. Sci. Phila., \ii, 1837, 193 (Columbia Piiver). — ^Audu- 

 bon, Orn. Biog., iv, 1838, 362, pi. 350; Synopsis, 1839, 223; Birds Am., 8vo. 

 ed., V, 1842, 213, pi. 318.— Seebohm, Geog. Distr. Charadriidse, 1888, pp. 

 xvii, 153. 



C[haradrius] montanus Gray, Gen. Birds, iii, 1847, 544. — Gambel, Journ. Ac- 

 Nat. Sci. Phila., 2d ser., i, 1849, 220 (coast of California). 



[Charadrius] montanus Gray, Hand-list, iii, 1871, 15, no. 9997. 



J£gialites montanus Bonaparte, Geog. and Comp. List., 1838, 45. — Dresser, Ibis, 

 1860, 33 (s. Texas).— Coues, Ibis, 1866, 266 (s. California). 



Aegialitis montanus Cassin, in Baird, Rep. Pacific R. R. Surv., ix, 1858, 693. — 

 Baird, Cat. N. Am. Bii-ds, 1859, no. 505.— Coues, Ibis, 1865, 159 (New Mex. 

 ico). — Cooper, Am. Nat., iii, 1869, 82 (e. base Rocky Mts., Montana). — 

 Elliot, Illustr. New and Unfig. N. Am. Birds, pt. 2, 1866 (vol. ii), pi. 39. 



^gialitis montanus Allen, Bull. Mus. Comp. Zool., iii, 1872, 141 (Fort Hays, w. 

 Kansas), 181 (middle Kansas; plains of Colorado and Wyoming; South Park, 

 Colorado); Am. Nat., vi, 1872, 359, 360 (Kansas); Proc. Post. Soc. N. H., 

 xvii, 1874, 66 (Yellowstone Park).— Ridg way, Am. Nat., viii, 1874, 109 

 (crit.). — Grinnell (G. B.), in Ludlow's Rep. Recon., 1876, 86 (Haymaker's 

 Creek, Montana, breeding). 



jEgialilis montana Belding, Proc. U. S. Nat. Mus., i, 1879, 440 (Stockton and 

 Marys^^.lle, California, Oct. -Dec). — American Ornithologists' Union, 

 Check List, 1886, and 2d ed., 1895, no. 281.— Cooper, Auk, ii, 1887, 91 

 (near Saticoy, Ventura Co., California, Dec). — Bryant (W. E.), Proc. Calif, 

 Ac. Sci., 2nd ser., ii, 1889, 275 (San Telmo and Tia Juana, Lower California, 

 winter).— Cooke, Bull. 56, Col. Agric Exp. Station, 1900, 199 (South Park, 

 Colorado, breeding). 



^[gialitisl montana Ridgway, Man. N. Am. Birds, 1887, 176. 



jEgialitus montanus Cooper, Amer. Nat., iii, 1869, 298 (near Great Falls, Mon- 

 tana). 



« Eight specimens. ^ Five specimens. 



