BIRDS OF NORTH AND MIDDLE AMERICA. 99 
but with rounded tips. Tarsus slender, more than one-fifth as long 
as wing, covered with irregular small scales, these larger and inclining 
more or less to a transverse quadrate form on acrotarsium; middle 
toe, without claw, decidedly more than half as long as tarsus, the 
outer and inner toe, successively, much shorter; hallux absent; 
a small but distinct web between basal phalanges of outer and 
middle toes, but none between inner and middle toes; bare portion 
of tibia decidedly shorter than culmen. 
Ooloration.—Forehead, nuchal collar, and under parts white, the 
latter interrupted by a black band across foreneck and another 
across chest; upper parts mostly grayish brown, the rump ochraceous. 
Range.—Temperate North America and Greater Antilles; south 
in winter to Chile, Paraguay, etc. (Monotypic.) 
OXYECHUS VOCIFERUS VOCIFERUS (Linnzus). 
EKILLDEER. 
Adults (sexes alike).—General color of upper parts, including 
auricular region, grayish brown, the rump and upper tail-coverts 
ochraceous, the latter paler, more buffy; forehead, supra-auricular 
area, chin, throat, collar round hindneck and under parts immaculate 
white, that of the under parts interrupted by a black collar com- 
pletely encircling the lower neck and a broader black band across 
chest; fore part of crown, and a narrow stripe across lores (from bill 
to eye and including anterior edge of forehead) and a postocular 
streak also black; primaries blackish, the proximal ones with some 
white on outer webs; greater wing-coverts broadly tipped with 
white;. distal secondaries dusky with white base and tip, the 
dusky decreasing toward proximal secondaries, the innermost of 
which are wholly white; primaries dusky with a subterminal 
shaft-streak of white, the proximal quills with a subterminal 
elongated space of white on outer webs; middle rectrices grayish 
brown, darker subterminally and ochraceous at tip, the tail otherwise 
mostly light ochraceous or ochraceous-buff, fading into white on 
lateral rectrices, broadly tipped with white and with a subterminal 
bar of black; bill black; iris dark brown; eyelids orange-red or 
scarlet; legs and feet pale pinkish gray to grayish yellow (in life). 
Young—Similar to adults, but feathers of upper parts more or 
less distinctly margined with rusty, ochraceous, or buffy. 
Downy young.—Upper parts brownish gray or drab, minutely and 
rather indistinctly mottled or flecked with darker; a narrow black 
band across fore part of crown and from posterior angle of eye 
around posterior margin of occiput; lower back and rump with an 
irregular median stripe and two lateral stripes of black, the space 
immediately beneath the latter immaculate dull pinkish cinnamon; 
a black band across wing, the posterior edge of the arm-wing and 
