GOATSUCKERS 
223 
tail; tail with at least terminal third of outer feathers white or huffy; 
throat tawny, bristles of gape with lateral filaments. Adult female : similar, 
but without white or bully on tail. Young: similar, but much lighter, top 
of head grayish and wings tawny. Length: 11-12, wing 8.70-8.1)0, tail 
6.25-6.30. 
Distribution. — Breeds in Lower Sonoran zone in the southeastern United 
States, from southern parts of Virginia, Illinois, Indiana, and Kansas 
south to the Gulf of Mexico, and from the Atlantic west to Fort Clark, 
Texas ; migrates to the West Indies, and through eastern Mexico to South 
America. 
Eggs. — Usually laid on dry leaves on the ground; 2, creamy or pinkish 
white, blotched, marbled, and spotted with browns and purples. 
Food. — Moths, beetles, winged ants, other insects, and birds. 
Like all the Caprimulgidm, the chuck-will's-widow is crepuscular, 
flying about mainly in the dim morning or evening hours. Its call of 
chuck-will's-widow is markedly different from that of the whip-poor- 
will. 
417a. A. v. macromystax ( Wagler ). Stephens Whip-poor-will. 
Adult male. — Similar to A. vociferus , but slightly larger and more 
tawny, throat band largely tawny in adult male, and white of tail re¬ 
stricted to less than terminal third. Adult female: similar, but white of 
tail tawny and restricted. Length: 9.60-10.20, wing 6.27-6.65, tail 4.03- 
5.45. 
Distribution. — Arizona, New Mexico, and southwestern Texas; south 
over mountains bordering tablelands of Mexico to Guatemala. 
Nest. — A slight depression in the ground. Eggs: 1 or 2, white, or 
with faint markings. 
Food. — Among other things, large brown beetles. 
When we were spending a night in the head of McKittrick canyon 
in the Guadalupe Mountains, Stephens whip-poor-wills came close 
enough to our camp-fire for us to hear distinctly the marked burr of 
417. Antrostomus vociferus {Wils.). Whip-poor-will. 
Adult male .— Throat blackish , bordered by white band; rest of under 
parts mixed tawny and black; upper parts mottled 
gray, streaked, spotted, and barred with blackish, 
black streaks of crown wide medially ; wings much 
marked with reddish brown; three outer tail feathers 
white for more than terminal third. Adult female: 
similar, but white of tail much restricted and ob¬ 
scured. Young : top of head mottled gray, spotted 
instead of streaked with black ; rest of upper parts 
bright tawny, scapulars with large black spots; 
under parts almost plain buff y. Length: 9.50-10.00, 
wing 5.80-6.70, tail 5.10-6.50. 
Distribution. — Breeds from the Atlantic to the Plains, and from Mani¬ 
toba south through western Nebraska to Texas; migrates to Guatemala; 
casual to Porto Rico and the West Indies. 
Eggs. — Deposited on dry leaves on the ground; 2, white, with blotches, 
spots, and tracings of brown and purple. 
Food. — Night-flying insects, including Rocky Mountain locusts. 
Fig. 288. 
