GOATSUCKERS 
225 
in the shade of a bush, and flew from his feet ak he approached. 
One of them lit again in a patch of bright sunlight, and, apparently 
blinded by the light, sat there calmly until he walked up within a 
few feet of it. He experimented with the birds, flushing them a 
number of times, and found that when they lit in the shade, as they 
usually did, they were not only much less conspicuous than in the 
sun, blending in with the leaves and rocks, but the shade enabled 
them to see him clearly enough for them to recognize what he was 
so that they would fly while at a distance of four or five rods. 
The poor-will himself is less known than his voice, which is insep¬ 
arably associated with the warm still western evenings. Coming 
from the canyons in the moonlight it is one of the softest, most 
soothing sounds in nature. 
418a. P. n. nitidus Brewst. Frosted Poor-will. 
Similar to nuttallii , but smaller and paler , prevailing color of upper parts 
brownish gray inclining to silvery or hoary, with black markings smaller and 
much restricted; chin and sides of head mottled grayish brown; chest with 
little if any solid black. Wing: 5.44, tail 3.52. 
Distribution. — Texas to Arizona and from western Kansas south to 
northern Mexico. 
Eggs. — Deposited on ground in open places, sometimes under a bush; 
2, white, usually faintly tinged with huffy. 
418b. P. n. californicus Ridgw. California Poor-will. 
Similar to nuttallii, but much darker; middle of crown largely blackish; 
hind neck extensively marked with black, back dull blackish gray or wood 
brown instead of light brown. 
Distribution. — Coast region of California. 
Eggs. — Similar to those of nuttallii. 
GENUS NYCTIDROMUS. 
Nostrils prolonged as cylindrical tubes opening forward and outward ; 
rictal bristles heavy ; tarsus lengthened, but not exceeding middle toe with¬ 
out claw ; wing scarcely rounded; plumage not so lax as in the whip-poor- 
will. 
419. Nyctidromus albicollis merrilli Senn. Merrill Pa- 
rauque. 
Adult male. — Upper parts finely mottled gray and brown, the crown 
broadly streaked with velvety black, and scapulars strikingly patterned with 
triangular velvety black and buffy markings; wing quills crossed by white 
band; tail with second and third feathers largely white, throat with wide 
white band, rest of under parts buffy, barred. Adult female: similar, but 
smaller, browner, duller, and white of wings and tail restricted. Young: 
similar to sexes of adults, but much paler, crown with markings triangular 
or tear-shaped with light border. Male: length 12.00-13.50, wing 6.75- 
7.50, tail 6.75-7.40. Female : length 10.50-11.50, wing 6.00-6.30, tail 5.80- 
6 . 00 . 
Distribution. — From southern Texas south to the Isthmus of Tehuan¬ 
tepec. 
