622. 
630 SYSTEMATIC SYNOPSIS. — LIMICOLZ. 
crown, back, and scapulars broadly edged with. rusty-ochraceous, or bright cinnamon, the 
scentral field of each feather nearly black, much darker than wings or rump, some of the scap- 
ulars and interscapulars tipped with white in some specimens. Lesser coverts narrowly, 
greater coverts broadly, bordered terminally with white; greater coverts broadly tipped with 
white, forming a conspicuous cross-bar; several inner secondaries chiefly white; the others, 
also the inner primaries, narrowly skirted and tipped with white. Rump, upper tail-coverts, 
and middle tail-feathers, uniform fuliginous dusky, the other rectrices paler, or dull cin- 
ereous. A conspicuous long whitish superciliary stripe, reaching to nape, and confluent 
with whitish of under side of head, thus posteriorly bounding-a large sooty-brown auricular 
area; anterior portion of lores, and forehead dull smoky-grayish; neck, jugulum, and breast, 
dirty whitish, sometimes soiled with dingy buff, and clouded or spotted with dull slate, sooty- 
plumbeous, or dusky-blackish, this sometimes forming a large patch on each side of breast. 
Other under parts pure white, the sides with a chain of slaty spots and streaks, the crissum 
streaked with dusky ; lining of wing pure white. Bill and feet brownish-black in the dried 
skin; iris brown. Winter plumage: Above, soft smoky-plumbeous, the seapulars and inter- 
scapulars glossy purplish- dusky centrally, the plumbeous borders of the feathers causing a 
squamous appearaiice; head and neck uniform plumbeous, excepting the throat and a supra- 
loral patch, which are streaked whitish ; jugulum squainated with white, the breast similarly, 
but more broadly marked. Wing, tail, and rump, asin summer. Young, first plumage: Seap- 
ulars and interscapulars black, broadly bordered with bright rusty and buffy-white, the latter 
chiefly on the longer outer scapulars and lower back ; wing-coverts broadly bordered with buffy- 
white ; pileum streaked black and ochrey; jugulum and breast pale buff, or buffy-white, streaked 
with dusky. Downy young: Above, bright rusty-fulvous, irregularly mottled with black, the 
back, wings, and rump flecked with yellowish-white papilla ; head above deep fulvous-brown, 
striped with velvety black from forehead to occiput, where confluent with a cross-bar of the 
same; lores with two parallel stripes of same. Lower parts white, distinctly fulvous on sides. 
Wing 4.50-5.15 inches, average 4.86; culmen 0.98-1.25, average 1.13; tarsus 0.88-1.00, 
average 0.95; middle toe without claw 0.78-0.90, average 0.86. Aleutian Islands and Coast 
of Alaska all the year round; extent of migrations unkuown, if any. 
A. ptilocne/mis. (Gr. mridov, ptilon, a feather ; xynuis, knemis, a greave ; the crus being feath- 
ered.) PRYBILOV SANDPIPER. BLACK-BREASTED SANDPIPER. Different. Adult in breeding 
dress: With somewhat the appearance of a summer Pelidna alpina, but the black area pec- 
toral, not abdominal. Crown, interscapulars, and scapulars black, completely variegated with 
rich chestnut, ochrey, and whitish, the body of each feather being black, with one or another 
or all the lighter markings; the coronal separated from the dorsal variegation by a grayish- 
white, dusky-streaked cervical interval. Lower back, rump, and upper tail-coverts blackish, 
little variegated with chestnut. Secondaries nearly all pure white, a few of the outermost and 
innermost touched with grayish-brown near end. Primaries grayish-brown with white shafts 
except at tip, fading to white on inner webs toward base ; several of the inner ones also largely 
white on outer webs, and tipped with white. Central tail-feathers brownish-black ; next pair 
abruptly paler, grayish ; rest white or whitish with pale gray tint. Front and sides of head, 
superciliary line, tufts of flank-feathers, and entire under parts, white, interrupted on the 
breast with a large but not well defined nor perfectly continuous blackish area, and marked 
on the upper breast and sides with a few sharp blackish shaft-lines. A dusky auricular patch. 
Legs and bill dark. Length apparently about 9.50; wing, 4.80-5.30; tail 2.30-2.70; Dill 
1.10-1.40! tarsus 0.90-1.00; middle toe and claw cr 05-1.20; 9 averaging less than ¢. 
Winter plumage as above ail, First plumage: Upper parts much as in the adults, but the rusty 
markings in curved rather than angular lines, and much narrower ; edges of wing-coverts ochrey. 
Interior tail-feathers rusty-edged. Throat and breast more or less suffused with rusty; no black 
pectoral area, but the jugulum, breast, and sides suffused with rusty. Chicks in down (July): 
