18 
NORTH AMERICAN BIRDS. 
Subfamilies and Genera. 
Motacillinse. Tail longer than or equal to wings ; the two central feathers rather 
longer than lateral ; the feathers broadest in middle, whence they taper gradually 
to the rounded tip. Colors uniform : gray, black, yellowish ; without pale edges 
to feathers above, or streaks below. Nest on ground. (Page 18.) 
Tail from coccyx considerably longer than the wings, doubly forked. Hind 
claw shorter than the toe; decidedly curved. (Page 18.) . . . Motacilla. 
Tail from coccyx equal to the wings, slightly graduated. Hind claw de- 
cidedly longer than the toe, slightly curved. (Page 18.) . . . Budytes. 
Anthiiias. Tail shorter than the wings, emarginate at end, the two central 
shorter than lateral ; the feathers broadest near the end, and rounding rapidly at 
end. Above grayish-brown, the feathers edged with paler. Under parts streaked. 
Nest on ground. (Page 18.) 
Wings much pointed and lengthened. 
Hind toe and claw shorter than tarsus ; outstretched toes falling short 
of tip of tail. (Page 18.) Anthus. 
Hind toe and claw longer than tarsus; outstretched toes extending 
beyond tip of tail. (Page 19.) ....... Neocorys. 
Subfamily MOT ACILLINiE. 
Genus MOTACILLA, Linn. 
M. alba. Above ashy, wings and tail blackish ; all the wing-feathers edged with 
white ; two outer tail-feathers mostly white ; occiput, nape, chin, throat, and jugulum deep 
black; rest of head and lower parts white. Wing, 3.50 ; tail, 3.80. Eggs grayish-white, 
uniformly and finely spotted with ash-colored and black dots. Hah. Europe ; accidental 
in Greenland. ( White Wagtail. ) 
Genus BUDYTES, Cuvier. 
B. flava. Above olive-green, the nape and crown plumbeous ; beneath sulphur-yel- 
low ; the chin, maxillse, and a supercilliary stripe, white ; two outer tail-feathers mostly 
white. Wing, 3.00 ; tail, 2.80. Eggs brownish-yellow, or reddish- white, profusely and 
finely dotted with reddish-gray, a few zigzag lines of blackish, at larger end. Hob. Pa- 
leearctic region; Alaska, etc. ( Yellow Wagtail .) 
Subfamily ANTHINiE. 
Genus ANTHUS, Bechst. 
Bill and feet blackish. Prevailing color above olive-brown. Beneath buff. 
Edge and inside of wings white. Shafts of middle tail-feathers above dark 
brown. Eggs dark-chocolate, with lines or streaks of black. Length, 6.50. 
Hob. All North America, in winter south to Peru. {American Titlark.') A. ludovicianus. 
Bill and feet dusky flesh-color. Prevailing color above olive-green; more 
distinctly streaked. Beneath greenish-white. Edge and inside of wings 
greenish-yellow. Shafts of middle tail-feathers above whitish. Eggs red- 
dish-brown, mottled with darker. Hob. Europe ; occurs in Greenland, and 
on Norton Sound. {European Titlark.) . 
A. pratensis. 
