BIRDS- — CHARADRIDAE AEGIALITIS WILSONIUS. 
693 
AEGIALITIS MONTANUS, (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. 
Aegialtes 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. 
Hah. — 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. 
a 
6 
o , . 
11 
Locality. 
When collected. 
Whence obtained. 
Collected by — 
bo 
If 
as 
Sex 
5 
□ 
9043 
Loup fork of Platte, Neb.. 
Lieut. Warren 
Dr. Hayden 
9044 
6596 
do 
do 
do 
Mouth of Milk river 
Gov. Stevens 
5757 
3 
North Platte 
Aug. 12,1856 
Lieut. Bryan 
251 
W. S. Wood 
15. 50 
7055 
July 10,1857 
do 
267 
do 
3709 
6595 
Near 32° latitude 
6597 
6599 
6598 
3 
Los Angeles 
Lieut. Williamson. 
8 
do 
do 
rlo J 
I 
Ochthodromus, Reich. 1 
AEGIALITIS WILSONIUS, (Orel.) Cassin. 
Wilson's Plover. 
Charadrius wilsonhis, Ord, ed. Wilson's Orn. IX, 182.5,77; pi. lxxiii .— Nutt. Man. II, 1834, 21. — Arn. Orn. 
Biog. Ill, 1835, 73: V, 1839, 577; pi. 284. — In. Syn. 223.— Ib. Birds Am. V, 1842, 
214 ; pi. 319. 
Aegialtes wilsonhis, Bon. List, 1838. 
Octhodromus wilsonhis, Reich. Syst. Av. Int. 1853, p. xviii. 
Charadrius erassirostris, Spix, Av. Bras. II, 1825, 77 ; pi. xciv. 
Figures. — Wilson, Am. Orn. IX, pi. 73, fig. 5.— Aud. B. of Am. pi. 219 ; oct. ed. 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 wUsonius, Ord. Smaller than Jlrglalilis. Bill 
longer and thicker. Tail short. 
