(61.) 
(62.) 
AMMODRAMUS. 413 
sides of the crown chiefly of the latter color; lower parts entirely 
buff, streaked on chest with dusky.) 
@. Colors of upper part usually not sharply contrasted; chest often 
nearly white, and frequently with the streaks dusky, or black- 
ish, and very sharply defined; length 4.80-5.85. Male: Wing 
2.17-2.36 (2.27), tail 1.90-2.25 (2.06), culmen .53~-.59 (.57), depth 
of bill at base .23-.27 (.25), tarsus .86-.91 (.89). Female: Wing 
2.18-2.42 (2.23), tail 1.90-2.13 (1.98), culmen .53-.58 (.56), depth 
of bill at base .23-.26 (.24), tarsus .85-.87 (.86). Eggs .76 x 
.57, brownish white, finely speckled or sprinkled with dull rusty 
brown. Hab. Salt marshes of Atlantic coast, from Prince 
Edward Island and Nova Scotia to North Carolina. 
549. A. caudacutus (GmezL.). Sharp-tailed Sparrow. 
@’. Colors of upper parts usually very sharply contrasted, especially 
the chalky white streaks of back, as compared with the rich 
umber-brown ground-color ; chest and sides usually very deep 
buff or ochraceous, never (?) very distinctly or sharply streaked 
with dusky. Male: Wing 2.12-2.33 (2.24), tail 1.98-2.21 
(2.07), culmen .49-.53 (.51), depth of bill at base .23-.26 (.25), 
tarsus .80-.87 (.84). Female: Wing 2.15-2.20 (2.18), tail 1.83- 
2.09 (1.99), culmen .50-.52 (51), depth of bill at base .23-.26 
(.25), tarsus .82-.85 (.83). Hab. Fresh-water marshes of east- 
ern United States, chiefly in Mississippi Valley; east during 
migrations to marshes of Atlantic coast (Massachusetts to 
South Carolina)........... 549a. A. caudacutus nelsoni ALLEN. 
Nelson’s Sparrow. 
ce, Edge of wing and supraloral streak yellow; no distinct superciliary 
stripe ; malar stripe whitish. 
d', Above nearly plain olivaceous, tinged with ashy, the wings and 
tail more brownish; beneath grayish white, the chest streaked 
with dull grayish. Young: Crown and back broadly streaked 
with black ; lower parts buffy white, the chest and sides streaked 
with dusky. Length about 5.25-6.00, wing 2.40-2.55, tail 2.10- 
2.25, culmen .60-.67, tarsus .90-.95. Hggs .80 X .62, greenish 
white or brownish white, coarsely speckled with umber-brown. 
Hab. Salt marshes of Atlantic and Gulf coasts, from Massachu- 
setts to Texas.. 550. A. maritimus (Wi1s.). Segside Sparrow. 
d’, Above black, indistinctly streaked with olive and grayish ; beneath 
white, broadly streaked on breast and sides with black; edge 
of wing and short stripe on sides of forehead bright yellow; 
length 5.75-6.25 (5.95), wing 2.25-2.40, tail 2.10-2.50, culmen 
.50-.60, tarsus .80-.92. Hab. Southeastern Florida (marshes of 
Indian River).......cssccssseseeeeeneees 551. A. nigrescens Ripew. 
Dusky Seaside Sparrow. 
