Allen's NATUiiALtST’s librauv. 
inner aspect, conspicuous on the inner web, to the tip 
of which it extends, becomes there frosted with grey, and 
ascends along 'the margin of the inner web for some 'little 
distance; the first primary blackish along the whole of the 
outer web; secondaries grey, with dusky shaft-lines, white alono- 
the inner webs and at the tips of the innermost quills ; central 
tail-feathers white, the rest white with a grey shade on the 
outer web, increasing towards the outer ones, the external long 
feathers having a dusky blackish outer web ; crown of Iiead 
and nape black, this being drawn through the upper half of the 
lores and along the sides of the crown above the ear-coverts • 
sides of face from the lower portion of the lores, and reaching 
to the eye and over the ear-coverts, checks, and throat pure 
white; remainder of the under surface of the body, from the 
fore-neck downwards, delicate lavender grey ; under tail-coverts, 
under wing-coverts and axillaries pure white ; “ bill coral-red’ 
the extreme tip horn-colour ; feet coral-red ; iris dark brown. 
Total length, 15 inches; ciilmen, 1-55 ; wing, io'8; tail, 2'7 ; 
outer tail-fcathens, 77; tarsus, 0-85. 
Adult Female.— Similar in colour to the male. Total length 
12-5 inches; culmen, 1-35; wing, 107; tail, 57; tarsus, 0 7.’ 
Adult in Winter Plumage.— Differs from the summer plumage 
in wanting the black cap, the head being black behind, Iiut 
with the forehead and crown streaked and mottled with wiiite • 
the under surface of the body is pater and shows less grey ■ the' 
bill and feet much duller in colour. ’ 
Immature Birds in First Winter.— Resemble the winter pluma-e 
of the adults but are distinguished by the forehead being white, 
and by a dark gvey band along the marginal upper wing-coverts! 
1 he under surface of the body is entirely white. 
NestUng. Lrownish-buff, or stone-buff streaked and spotted 
with black, without any very distinct pattern, the he.ad lighter 
thcin the btick, and nioie minutely spotted] edge of wing and 
under parts white, browner on the belly and vent; lores, sides 
of face, and throat brown. As the nestling grow's in si’ze the 
black pattern on the upper parts becomes more distinct, and 
the throat fades to a light-brown colour. ’ 
After the downy stage, the feathers of the upper surface are 
