BIRDS—CHARADRIDAE—AEGIALITIS WILSONIUS. 693 
AEGIALITIS MONTANUS, (Towns.) Cassin. 
Mountain Plover. 
Charadrius montanus, Towns, J. A.N. Sc. VII, 1837, 192.—Is. Narr. 1839 349.—Avp. Orn. Biog. 1V, 1838, 362 ; 
pl. 350.—In. Syn. 223.—In. Birds Am. V, 1842, 213; pl. 318. 
Aegialtes montanus, Bon. List, 1838. 
Spe. Cu.—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 biack 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. 
Hab.—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. 
Br igs $ x RS 
2 = ; Locality. ‘When collected.| Whence obtained. ip Collected by— = | ic & 
a a ¥ | aa | | 2 = 
SA] a 6 Ala 
9043) 7222-2. Loup fork of Platte, Neb..| Sat aemweaacicce = Lieut. Warren <-.-|-.---- Dr; Haydenss=--|=22..4 | Stesas 
CY Ge | Se ees Ca eer ee eee ee cease lstesis= doscescess esciee a 
(SE 9) eae Mouth of Milk river --.-- eeeiee serene | DroSuckley-<s-2 \ecoaes ke seue 
5757 3 North “Platte s=2—-..---- | Aug. 12,1856 | AWS Wood ..--| 8.75 | 15.50 
W055, |2--2- Pole creek, Neb-.------- Duly OF USb i |e ooanC0= serene ase) ZOll=anna doe ssss== janes | ate 
SrA) «| Seer Westerns letaseens so2-sr)| ea omenen noes Jee Wi pSud 00M eas |seeeaa|peana sees se eee See Ieee 
65950 Os 2 25 Neirs32© latitude aso. s--|-s---2-~2-22—2 Capt, Popesss---=- eee ledereessansseshe|Se2ecceeses 
G5O%p i eaaeae Mimbresito Rio Grande-=-<|....2-.-<:=--- Dr Hentye ae scomc |e = aae |e laren ies 
6599 Gua Sbos#Aneelesi2s=- 25522 2cl Se os se ee Lieut. Williamson-)...--- | Drs Heermann:2|2-— 2) a oee 
Seco y allele: / [Ppa acto | Oy 2 a CN Deny doteaas. tn a | aon doacagict| eee eee 
Ochthodromus, Reich.! 
AEGIALITIS WILSONIUS, (Ord.) Cassin. 
Wilson’s Plover. 
Charadrius wilsonius, Orv, ed. Wilson’s Orn. IX, 1825, 77; pl. Ixxiiii—Nurr. Man. II, 1834, 21.—Aup. Orn. 
Biog. III, 1835, 73: V, 1839, 577; pl. 284.—Is. Syn. 223.—Is. Birds Am. V, 1842, 
214; pl. 319. 
Alegialtes wilsonius, Bon. List, 1838. 
Octhodromus wilsonius, Reicu. Syst. Av. Int. 1853, p. xviii. 
Charadrius crassirostris, Srix, Av. Bras. II, 1825, 77; pl. xtiv. 
Ficures.—Witson, Am. Orn. IX, pl. 73, fig. 5.—Auvp. B. of Am. pl. 219; oct. ed. V, pl. 319. be 
Sr. Cu.—Smaller than the preceding ; bill rather long and robust. Male. Front and stripe over the eye and entire under 
1 Ochthodromus, Reicu. Syst. Avium, p. xviii. Type Charadrius wilsonius, Ord. Smaller than .fegialitis. Bill 
longer and thicker. Tail short. 
