MONGOLIAN SAND-DOTTEREL. 
Eudroinias moyigolicus Severtzoff, Turkcst. Jevotnie, p. 69, 1873 ; Dresser, Ibis 1876, 
p. 327. 
JSgialitis mastersi Ramsay, Proc. Linn. Soc. N.S.W., Vol. I., p. 135, 1876 (North-east 
Queensland) ; id., ih., Vol. II., p. 197, 1878 ; id., Tab. List Austr. Birds, p. 19, 
1888 ; Legge, Austr. Assoc. Adv. Sci. 1892, p. 973. 
? JEgialitis bicinctus Ramsay, Proc. Zool. Soc. (Lond.) 1877, p. 337 (Cardwell). 
fJEgialitis ruficapilla (not Temm.) Blakiston and Pryer, Ibis 1878, p. 219 (c/. Seebohm, ib., 
1879, p. 25). 
Cirrepidesmus mongolicus Heine, Nomencl. Mus. Hein., p. 336, 1888. 
Ochthodromus mongolus Sharpe, Cat. Birds Brit. Mus., Vol. XXIV., p. 223, 1896 ; Campbell, 
Nests and Eggs Austr. Birds, p. 793, 1901 ; Carter, Emu, Vol. III., p. 176, 1904 ; 
Hartert, Nov. Zool., Vol. XII., p. 201, 1905 ; Hall, Key Birds Austr., p. 82, 1906 ; 
Mathews, Handl. Birds Austral., p. 24, 1908 ; Ogilvie-Grant, Ibis 1910, p. 182. 
Ochthodromus bicinctus Carter, Emu, Vol. III., p. 175, 1904 (bird in Tring Museum 
examined). 
Distribution. Siberia (breeding) southwards to Australia. 
Adult male, in summer-'plumage. Lores, feathers surrounding the eye, ear-coverts, and a 
band across the fore-part of the crown black ; fore-part of head and sides of crown cin- 
namon-rufous, becoming darker rufous on the hind-neck and continued on to the chest 
and sides of breast, where it becomes bright chestnut; forehead, throat, abdomen, 
under tail-coverts, and axiUaries white ; a very narrow Kne of black dividing the 
white of the throat from the rufous chest-band ; lesser imder wing-coverts white, 
more or less spotted with brown ; greater under wing-coverts grey with white at the 
tips ; middle of crown, back, scapulars, wings, and middle tail-feathers pale brown ; 
upper tail-coverts inclining to grey fringed with white ; bastard-wing, primary- 
coverts and quills darker than the back, and inclining to black ; greater wing- 
coverts and secondaries fringed with white at the tips ; outer tail-feathers paler 
than the middle ones, and tipped with white, the outermost pair white on the outer 
web ; bill and iris black ; feet lead-grey. Total length 204 mm. ; culmen 17, 
wing 135, tail 52, tarsus 31. 
Adult female, in summer-plumage. Similar to the adult male, but the characters on the 
head less pronounced. 
Adult, in unnter-plumage. Distinguished from the nuptial-dress by the absence of cinnamon- 
rufous on the head and hind-neck, and the rufous and black bands on the fore-neck, 
these parts being represented by greyish-brown more sparsely on the fore-neck ; 
forehead and eyebrow white without any black band on the former ; lores, cheeks, 
and ear-coverts brown. 
Nest. “A slight hollow in the ground. Lined with leaves and stems of Angelica 
archangelica ” (Stejneger). 
Eggs. Clutch, three ; “ Ground color between cream-buff and clay color ; spotted, less 
numerously at the small end, with markings of irregular size, chiefly of clove brown, 
bistre, and even as light as wood brown. The lighter markings are for the most 
part rather obscure, as if imbedded in the shell, or as if laid on before the ground 
color. The markings are irregularly confluent on the greater hemisphere of the egg. 
“ The ground color is darker than in eggs of AEg. hiaticula, and the markings assume 
about the same shapes as in that species, but the larger markings are somewhat 
greater in extent in rtwnqolus, and there is not such a preponderance of the darkest 
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