PASSERELLA. 433 
brown in winter and more or less stained with yellowish in imma- 
ture birds. Young: Above heavily streaked with blackish, the an- 
terior and lateral lower parts also distinctly streaked. Length 5.25- 
6.00, wing about 2.30-2.50, tail 2.40-2.70. Eggs .76 x .56, pale bluish 
green or greenish white, coarsely spotted or blotched with brown 
(xarely speckled). Hab. Eastern North America, breeding from 
northern United States north to Newfoundland, Labrador, and Fort 
Simpson; west to edge of Great Plains, casually to Utah. 
584. M. georgiana (Lars.). Swamp Sparrow. 
a’, First quill longer than sixth; malar stripe and broad band across chest buff, the 
latter narrowly streaked with black. 
Adult: Top of head hazel-brown sharply streaked with black and di- 
vided by a median grayish line; back olive-grayish or brown, sharply 
streaked with black. Young: Not essentially different from adult, but 
colors more suffused and with streaks less sharply defined. Length 
5.25-6.00, wing 2.30-2.65, tail 2.30-3.00. Eggs .77 <x .57, dull whitish, 
greenish white, or (usually) brownish white or. pale brownish, marked 
like those of M. georgiana. Hab. Whole of North America, breeding 
from northern border of United States northward, and south along 
(70) higher mountain ranges... 583. M. lincolni (Aup.). Lincoln’s Sparrow. 
Genus PASSERELLA Swainson. (Page 384, pl. CX., figs. 3, 5.) 
Species. 
Common CHaracters.—Above brownish gray, brownish, or rusty, the upper 
tail-coverts, tail, and wings usually much more rufescent than other portions; the 
back (sometimes top of head also) sometimes streaked with rusty; lower parts 
white, more or less thickly marked with triangular spots of brown, rusty, or dusky, 
especially on chest (where these spots are sometimes united into a more or less 
conspicuous patch, as also on sides of throat), the sides and flanks striped or broadly 
streaked with the same color. Young not materially different from adults. West 
on ground, or near ground in bushes. Hggs 3-5, pale bluish green, dull brownish 
white, or light brownish, speckled, spotted, or blotched with brown (sometimes 
nearly uniform chocolate-brown). 
a}. Wing longer than tail; spots on chest larger, more blended. 
b'. Upper parts mixed deep rusty and brownish gray, in variable proportion ; 
if grayish predominating, the back (sometimes top of head also) streaked 
with rusty; wing-coverts usually narrowly tipped with whitish, pro- 
ducing two more or less distinct bars ; markings on lower parts chiefly 
(or entirely) deep rusty; length 6.20-7.50, wing 3.80-3.70 (3.50), tail 
2.80-3.15 (3.02), exposed culmen .43-.47 (.45), depth of bill .30-.33 (.82), 
tarsus .97-1.04 (1.01), hind-claw .38-.43 (.39). Hggs .91 X .63, the deep 
brownish style very frequent. Hab. Northern North America, breeding 
from Gulf of St. Lawrence and Labrador to Alaska (everywhere north 
55 
