GLAREOLA. 155 
Adult male and female—Above nearly uniform earthy brown; tail- 
coverts white; a narrow line below eye white; lores black, this color 
continued in a line below eyes to ear-coverts and across breast and 
bordered in front with white; sides of neck earthy brown, usually extend- 
ing across fore breast; chin, throat, and breast light rufous or ocherous- 
brown; abdomen, flanks, and under tail-coverts white; primaries, second- 
aries, and alula blackish ; axillars and under wing-coverts bright chestnut ; 
white at base of tail gradually increasing in extent from the central pair 
of rectrices outward; tips brown. Bill black, scarlet posteriorly of 
nostrils; inside of mouth dull salmon-pink; iris brown; legs and nails 
dark seal-brown. Length of male, 230; wing, 182; tail, 78; exposed 
culmen, 14; tarsus, 34; middle toe with claw, 29. Female, wing, 185; 
tail, 72; exposed culmen, 15; tarsus, 34. 
A young female from Calayan, November 11, 1905, resembles the adult 
but the black and white lines across breast are wanting, being replaced 
by numerous blackish brown dashes a few of which are scattered forward 
onto throat. 
“Young.—Differs from the adult in having the entire upper surface 
blackish, mottled with broad edgings of sandy buff to all the feathers, 
especially the quills and tail-feathers ; head mottled like the back; cheeks 
and under surface of body isabelline-buff; fore neck and chest mottled 
with black, the feathers with a broad subterminal bar or heart-shaped spot 
of black. 
“The sandy-buff margins to the feathers become bleached to white, 
and in many respects abraded, so that the subterminal black markings 
of the young plumage remain as margins to the dorsal feathers. The 
adult plumage is apparently gained by a molt, and the new feathers ~ 
have a slight indication of a sandy-buff fringe on the upper parts, while 
the chest is mottled with ashy, the feathers having sandy-colored margins ; 
the throat is at first irregularly spotted or streaked with blackish, and 
has scarcely any signs of a black crescent. 
“There is considerable variation with regard to the rufous color of the 
throat and breast, this being sometimes very rich in tint. I imagine 
that this is a sign of nesting plumage to a great extent; but it may also 
indicate the age of the bird, the plumage becoming more richly colored 
as the bird gets older.” (Sharpe.) 
“Numerous flocks seen by me on the plains of Isabela in April, 1906.” 
(Worcester. ) 
During the winter months this anomalous plover visits the Philippines 
in small numbers. Its deeply cleft bill and forked tail distinguish it 
from all other plovers; and even while on the wing it may be recognized 
by its circling, swallow-like flight. 
