Si 
CYPSELIDiE 
THE SWIFTS. 
89 
b. Light mottling predominating on upper parts ; lower tail-coverts 
only very indistinctly and sparsely banded. 
Size of var. popetue. Hah. Middle Province of United States. 
{Western Night-Hawk.) . . . P var. henry i. 
C. acutipennis. White patch on primaries extending over only four outer 
quills, and beyond their middle portion ; distinct rufous spots on quills, 
anterior to the white patch. 
Length, 8.75; wing, 7.00 to 7.30; tail, 4.40 to 4.75. Colors not 
appreciably different. Hah. Middle America, north into southern 
border of United States. {Texas Night-Hawk.) . . var. texensis. 
~ Genus ANTROSTOMUS, Gould. (Page 88.) ^ 
A. Bristles of gape with lateral filaments. Light tail-spaces confined to inner 
web of feathers. 
Dark markings on crown longitudinal. Ocliraceous or white gidar collar in form 
of a narrow band across jugulum. Eggs marbled. 
1. A. carolinensis. Throat ochraceous, with sparse, narrow, transverse 
bars of black ; jugular collar more whitish, with broader but more dis- 
tant black bars. Crissum barred, and inner webs of primaries with 
black prevailing. Length, 12.00 ; wing, 8.90 ; tail, 6.30. Hab. Louisi- 
anian region of the Eastern Province of United States (Florida and 
the Carolinas to Arkansas). Costa Rica. {Chuck-will's Widow.) 
B. Bristles of gape without lateral filaments ; light tail-spaces covering both 
webs. 
a. Throat black, with sparse, narrow, transverse bars of pale brown. Cris- 
sum barred, and inner webs of primaries with black greatly predominating; 
2. A. vociferus. Crown ash, finely mottled or minutely sprinkled with 
dusky; lower parts wfithout whitish cloudings. White tail-patch cover- 
ing more than terminal half, and decreasing in breadth toward the outer 
feather. Bristles of gape moderate, slender ; bill weaker, less com- 
pressed, and nostrils smaller. Length, 10.00; wing, 6.40; tail, 5.10; 
rictal bristles, 1.50 or less. Hab. Eastern Province of North America, 
south to Guatemala. ( Whippoorwill .) 
Dark markings of cro wn transverse. G-ular collar pure white , covering 
nearly ivhole throat. Eggs pure white. 
b. Throat pure white, without any markings. Crissum immaculate ; inner 
webs of primaries with ochraceous very largely predominating. 
3. A. nuttalli. White space of tail occupying about the terminal 
fourth, or less, on three feathers, and gradually decreasing inwardly. 
v Length, 7.25 ; wing, 5.75 ; tail, 3.90 ; rictal bristles less than 1.00. 
Hab. Western Province of United States, from the Plains to the 
Pacific. {Poor-will.) 
Family CYPSELIDiE. — The Swifts. ™ 
Eyes brown. Nest of sticks, seeds, pappus, etc., united by a viscid secretion, or else 
composed entirely of this substance ; placed in hollow of trees, in crevices of, or against 
rocks, etc. Eggs elongated and always white. 
