BIRDS — CHARADRIDAE — AEGIALITIS WILSONIUS. 



693 



AEGIALITIS MONT ANUS, (Towns.) Cassin. 



Mountain Plover. 



Charadrius montanus, Towns, J. A. N. Sc. VII, 1837, 192.— Ib. Narr. 1839 ,349.— Aud. Orn. Biog. IV, 1838, 3G2 ; 



pi. 350.— Ib. Syn. 223.— Ib. Birds Am V, 1842, 213 ; pi. 318. 

 Jiegialtea montanus, Bon. List, 1838. 

 Sp. Ch. — Forehead, stripe over the eye, and entire under parts, white, generally tinged with dull yellowish and ashy on the 

 breast. Another band of black in front above the white band ; back of the neck and sides dull brownish fulvous ; other upper 

 parts ashy brown, usually with many feathers edged and tipped with fulvous or rufous; upper tail coverts lighter. Quills dark 

 brown with their shafts white, tail brown with a wide subterminal band of brownish black and tipped with white. Shorter 

 primaries with a white space on their outer webs, forming a patch of white on the wing ; under wing coverts and axillary 

 feathers pure silky white. Bill black, legs yellow. Younger, without the black band in front, and with the white band tinged 

 with dull yellow, entire upper parts with the feathers edged and tipped with dull ashy rufous. Total length, about 9 inches ; 

 wing, 6 ; tail, 3 inches. 



Hub. — Western North America. 



This bird is only known to inhabit the western countries of North America. Like other 

 species of this group it migrates very probably into South America. 



List of specimens. 



Ochthodromus, R e i c h .^ 

 AEGIALITIS WILSONIUS, (0 r d .) Gas a i n . 



Wilson's Plover. 



Charadrius wilsonius, Ord, ed. Wilson's Orn. IX, 1825, 77 ; pi. Ixxiii.— Nutt. IVIan. 11, 1834, 21.— Aitd. Orn. 



Biog. HI, 1835, 73: V, 1839, 577; pi. 284.— Ib. Syn. 223.— Ib. Birds Am. V, 1842, 



214 ; pi. 319. 

 Jleglallts XKihonius, Bon. List, 1838. 



Octlwdromus wilsonius, Reich. Syst. Av. Int. 1853, p. xviii. 

 Charadrius crassiroslris, Spix, Av. Bras. II, 1825, 77 ; pi. xciv. 



Figures.— Wilson, Am. Orn. IX, pi. 73, fig. 5.— Acd. B. of Am. pi. 219 ; oct. cd. V, pi. 319. 



Sp. Ch. — Smaller than the preceding ; bill rather long and robust. Male. Front and stripe over the eye and entire under 



' Ochthodromus, Reich. Syst. Avium, p. xviii. Type Charadrius loilsonius, Ord. Smaller than .Oeffialitis. Bill 

 longer and thicker. Tail short. 



