202 
BLACK- BELLIED PLOVER. 
space, cheeks, fore part of neck, breast, and axillar feathers, black ; the 
rest of the lower parts white, the lower primary coverts grey towards the end. 
Length to end of tail Ilf inches, to end of wings 12J, to end of claws 
14 ; extent of wings 25 ; wing from flexure 81 ; tail 3f ; bill along the 
ridge If, along the edge of lower mandible li ; bare part of tibia f ; tarsus 
2 ; hind toe V 4 ; middle toe Is, its claw f ; outer toe and claw If ; inner 
toe 1. Weight 6f oz. 
The female resembles the male, but has the black of the lower parts of a 
less deep tint. 
Young about a week old. 
Bill and feet dull greenish-brown. Iris brown. The general colour is 
pale brownish-yellow, mottled with dusky ; a whitish ring round the eye ; 
tail with a black band, rump whitish, primary quills dusky, the outer edges 
of the secondaries whitish. 
The young in autumn. 
Bill greyish-black ; feet bluish-grey. The upper parts brownish-black, 
spotted with white, some of the spots yellow ; the wings and tail as in the 
adult, but the latter tinged with grey, and having eight dark bars on all the 
feathers. The fore part and sides of the neck, and the sides of the body, 
greyish-white, mottled with brown- 
ish-grey ; axillary feathers brownish- 
black ; the rest of the lower parts 
white. 
Adult in winter. 
The adult in winter has the upper 
parts light greyish-brown, the mar- 
gins of the feathers much lighter ; the 
sides and fore parts of the neck pale 
grey, with dark grey streaks and spots; 
lower parts white. In other respects 
the colours are as in summer. 
In an adult male of this species 
there is a double row of papillae on 
the roof of the mouth. The tongue is 
1 inch long, slender, tapering, emar- 
ginate and papillate at the base, groov 
ed above, horny on the back. The 
oesophagus, a, is 5 inches long, at its 
upper part 4 twelfths in diameter, en- 
larged to f inch on the lower part of 
the necx. The proventriculus, b, ob- 
