SCOLOPACID4—SANDERLING. 2605 
irides hazel. Length 8 to 8-5 inches; culmen 1°23; wing 4°75 
to .5°5; tarsus 0°85. 
Adult (Winter): Upper parts suffused with rich purplish, 
the feathers margined with grey; eye-stripe almost obsolete ; 
fore parts beneath sooty-grey, the chin whitish and chest- 
feathers margined with white; flanks also marked with dark 
grey ; centre of abdomen and axillaries pure white. 
Young in first plumage: Several of the feathers of upper 
parts margined with white, including the wing-coverts. 
Distribution: Common summer visitant to the Arctic 
regions of Europe, Eastern Asia and parts of North America, 
passing southward on migration. Occurs in winter southward 
as far as Cape Colony. 
Habitat: The sea-coast, retiring to elevated moors to 
breed. 
Genus CALIDRIS. 
SANDERLING. “~~ 
Calidris arenaria (Zzw7z.). 
Adult (Summer): Feathers of fore parts above and be- 
neath buffish-chestnut, spotted or streaked with blackish-brown ; 
back- and scapular-feathers chiefly of this colour ; wing-coverts, 
rump- and outer tail-feathers greyish-brown, the latter with white 
shafts and the two former with dark median streaks ; greater 
coverts broadly tipped with white ; some of upper tail-coverts 
coloured like the back ; under parts below the breast white ; 
bill, legs, and feet black; irides hazel-brown. Vo hind ‘oe. 
Length 7°5 to 8 inches ; culmen o°8 to 1; wing 4°8; tail 2; 
tarsus 0°9. 
Adult (Winter): Feathers above drab-grey, with dark 
shaft streaks and paler margins ; wing-coverts darker and with 
white margins; feathers over the eye, forehead and entire 
under parts white. 
Young in first plumage: The chestnut of the adult re- 
placed by pale buffish-white both above and beneath; this 
colour soon fades into white, leaving the back chiefly dark 
brown, spotted with white ; a few dark pencillings about the 
sides of face and chest; innermost secondaries with dark brown 
centres and white margins. 
