GLAREOLIDA:—OYSTERCATCHER. 253 
Genus STREPSILAS. 
TURNSTONE. sgh 
Strepsilas interpres (Zz). 
Adult Male (Summer): Most of head, lower part of 
back and under parts below the chest w/te ; from the fore- 
head, through the eye passes a black band, joining broad malar 
band beneath; entire chest and sides of upper neck black ; 
crown-feathers black, margined with white; hind neck chiefly 
white; mantle and scapulars black, mixed with chestnut ; wings 
dark brown, varied with pale chestnut and blackish ; greater 
coverts white tipped ; upper tail-coverts black and white; tail 
white, banded towards the tip with black ; bill nearly black ; 
legs and feet orange ; irides dark brown. Length Q inches ; 
culmen 0°8 ; wing 5°8 to 6; tail 2°4; tarsus 1. 
- Adult Female: Similar, but the black portions of the 
plumage are duller; the white on head and neck suffused with 
brown ; the chestnut on the back paler. 
Adult (Winter): Differs from the summer plumage in 
lacking the bright chestnut ; upper parts blackish-brown, the 
black on the head and across the chest somewhat obscured by 
pale margins to the feathers. 
Young in first plumage: Very like adults in winter, 
but paler above ; upper parts generally dull brown, most of the 
feathers margined with pale yellowish, and on the wing-coverts 
with reddish-buff ; chest variegated with dull brown, and black- 
ish on the sides ; legs and feet pale orange. 
Distribution: Breeds in Iceland, on the Scandinavian 
and Baltic islands, and on the Northern Asiatic and American 
coasts. Migrates southward in autumn to Polynesia, Africa and 
South America. 
Habitat : Shingly sea-beach, or marine mud flats. 
Genus ee een 
OYSTERCATCHER. 
Hematopus ostralegus Zinn. 
Adult: Lower part of back, ramp, upper tail-coverts, basal 
