Genus AEGIALITIS

It appears best to class together the Sand-Plovers, Dotterels, and Ringed Plovers. At first sight the Sand-Plovers and Dotterels appear to be distinguished by having a breeding-dress different from the winter plumage ; but there is so complete a passage from forms with a distinct nuptial garb to those which have none, through species like the Kentish Plover in which the change is slight, that it appears best to keep all in one genus.

Structurally there is no difference between the present genus and Charadrius. Like that genus, Aegialitis is 3-toed, with reticulated tarsi and the first quill longest. The only distinction, except in size (all members of the present genus being smaller), is in plumage. The species of Aegialitis have the upper plumage uniform brown, not spangled with yellow or white, and the lower parts are chiefly white in the breeding-season, the amount of black never exceeding a pectoral band.

Key to the Species.

a. No white ring round the neck.
a1. Bill stout; shaft of third primary partly white.
a2. Bill from gape more than an inch ; wing 5.5…………………………AE. geoffroyi, p. 237.
b2. Bill from gape about 0.75; wing 5…………………………AE. mongolica, p. 238.
b1. Bill slender ; shaft of third primary dark throughout.
c2. Axillaries white; wing 5.5…………………………AE. asiatica, p. 239.
d2. Axillaries light brown ; wing 6.5…………………………AE, vereda, p. 240.
b. A white ring round neck.
c1. No black or brown band across breast…………………………AE. alexandrina, p. 240.
d1. A black or brown band across breast.
e2. Shaft of 1st primary white throughout, of others dark; wing 4 to 4.5 …………………………AE. dubia, p. 241.
f2. Shafts of all primaries white near end; wing 5…………………………AE. hiaticula, p. 243.
g2. Shafts of all primaries dark, or that of 1st whitish near end; wing 5.5…………………………AE placida, p. 244.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds
Reference: 
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol. 4. 1898.
Title in Book: 
Genus AEGIALITIS
Book Author: 
William Thomas Blanford
Year: 
1898
Page No: 
236
M_ID: 
4046
M_SN: 
Charadrius
Volume: 
Vol. 4
Term name: 
id: 
2079

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