298 NORTH AMERICAN BIRDS. 



Genus ANTROSTOMUS Gould. (Page 297, pi. LXXXVIL, fig. 1 ; pi. 



LXXXVIIL, fig. 1.) 



Species. 



Common Characters. — Upper parts brownish and grayish, much mottled and 

 otherwise varied with blackish ; outer webs of quills spotted with ochraceous, but 

 (in North American species) without any white spot ; lower parts pale fulvous or 

 buffy, mottled or barred with dusky; throat with a white, ochraceous, or buffy 

 transverse patch ; tail of male with white on terminal portion of inner webs. 



a 1 . Bristles of gape with lateral filaments. 



Adult male: Terminal third, or more, of three outer tail-feathers white, 

 or buffy. Adult female : Outer tail-feathers without any white or buffy 

 patch; length about 11.00-12.00, wing 8.70-8.90, tail 6.25-630. Eggs 

 deposited on ground or dead leaves in woods, 1.39 X 1-01, pale pinkish 

 buff, marbled with pale brown and lilac-gray. Sab. Southern Atlantic 

 and Gulf States and lower Mississippi Valley, north to North Carolina and 



southern Illinois 416. A. carolinensis (Gmel.). Chuck-will's-widow. 



a a . Bristles of gape without lateral filaments. 



b 1 . Nostrils large, opening vertically from out a nearly circular tubular case ; 

 rictal bristles very large and much lengthened, extending nearly half 

 their length beyond tip of bill ; top of head with ground-color distinctly 

 brownish, the whole surface marked with broad, serrate-edged streaks 

 of black ; adult males with white tail-patches occupying less than ter- 

 minal third of three or four outer feathers, and decreasing in extent 

 from exterior feather. 

 c 1 . Wing 7.00, or more ; four outer tail-feathers tipped with white in male, 

 three outer ones tipped with buff in female ; length about 10.50- 

 11.00, wing 7.00-7.25, tail 5.50-5.70, longer rictal" bristles 1.80-2.00. 



Sab. Cuba. 



A. cubanensis Lawr. Cuban Whippoorwill. 1 



c 2 . Wing less than 7.00 ; three outer tail-feathers tipped with white in 



male, with buff in female ; length about 10.00, wing 6.60-6.70, tail 



5.20-5.35, longer rictal bristles about 1.20-1.40. Sab. Eastern Mexico 



(Mirador, La Parada, etc.). 



A. tnacromystax (Wagl.). Mexican Whippoorwill. 2 

 b 2 . Nostrils small, inconspicuous, not distinctly raised above general level of 

 base of bill ; rictal bristles much weaker, reaching less than half their 

 length beyond tip of bill ; top of head more or less distinctly grayish, 

 narrowly streaked laterally, and very broadly streaked medially, with 

 black; adult male with white tail-patch occupying more than terminal 



1 Antroetomus cubaneneie Lawr., Ann. Lyo. N. Y. vii. May, 1860, 260. 



» Cajrrimulgua maeromyatax Waol., Isis, 1831, 533. Antroetomus macromyetax Sot., P. Z. S. 1866, 137. 



