BIRDS OF NORTH AND MIDDLE AMERICA, 478 
\ 
white, finely streaked with blackish; hindneck, upper tail-coverts, and 
under parts white, the lower portion of the first with a few roundish 
spots of dusky; back, scapulars, and wing-coverts dull whitish, 
coarsely and irregularly spotted with dusky grayish brown, this 
forming an almost uniform area on lesser wing-covert region, the 
anterior border of which is white; secondaries dusky, margined termi- 
nally with white; primaries dark hoary gray, narrowly margined with 
white, their inner webs mostly white but with a broad stripe along 
shaft and around tip dusky gray; rectrices deep brownish gray becom- 
ing paler gray basally, their tips margined with white; bill dull reddish 
or brownish; legs and feet dusky. 
Adult male.—Wing, 292-320 (309.4); tail, 115-165 (140.2); exposed 
culmen, 59-65.5 (62.4); tarsus, 28-30.5 (29.5); middle toe, 22.5-23.5 
(22.8) .¢ 
Adult female.—Wing, 310; tail, 129; exposed culmen, 57.5; tarsus, 
28.5; middle toe, 20.° 
Pacific coast of America, from San Francisco Bay, California, to 
Chile (Coquimbo Bay, Sept., Nov.; Vifia del Mar, near Valparaiso; 
Valdivia, Jan.); accidental on Gulf coast of Texas (Corpus Christi, 
July —).¢ 
Sterna elegans GamBet, Proc. Ac. Nat. Sci. Phila., iv, 1848 (pub. 1849), 129 
(Mazatlan, Sinaloa).—Barrp, in Rep. Stansbury’s Exped. Great Salt Lake, 
1852, 335 (Mazatlan); Cat. N. Am. Birds, 1859, no. 684.—LawRENcE, in 
Baird, -Rep. Pacific R. R. Surv., ix, 1858, 860; ed. 1860 (Birds N. Am.) 
Atlas, pl. 94.SaunpERs, Proc. Zool. Soc. Lond., 1876, 653 (monogr.); 1882, 
521 (Callao Bay, Peru; Coquimbo Bay, Chile, Sept., Nov., crit.); Cat. Birds 
Brit. Mus., xxv, 1896, 84 (Corpus Christi, Texas, July; La Union, Salvador, 
Dec.; San Mateo, Oaxaca, March; Chorillos, near Callao, Callao Bay, and 
Iquique, Peru; Coquimbo Bay, Chile, Nov.; Vifia de Mar, near Valparaiso; 
Valdivia, Jan.).—Rineway, Nom. N. Am. Birds, 1881, no. 682.—Covzgs, 
Check List, 2d ed., 1882, no. 795.—Barrp, Brewer, and Rweway, Water 
Birds N. Am., ii, 1884, 287.—Taczanowskx1, Orn. du Pérou, iii, 1886, 442.— 
AMERICAN ORNITHOLOGISTS’ Union, Check List, 1886, and 2d ed., 1895, no. 
66; 8rd ed., 1910, p. 43.—Brrant (W. E.), Proc. Calif. Ac. Sci., ser. 2, 1889, 
252 (Magdalena Bay, Lower California).—Townsenp, Proc. U. 8. Nat. Mus., 
«Five specimens. 
+ One specimen. 
¢ Specific records are as follows: 
California: Monterey Bay, Sept., Oct., 1896; San Francisco Bay. 
Lower California: La Paz, March; Magdalena Bay. 
Sonora: Guaymas, breeding. 
Sinaloa: Mazatlan. 
Tepic: Isabella Island (breeding?). 
Oaxaca: San Mateo, March; Gulf of Tehuantepec. 
Salvador: La Union, Dec.; Bay of Fonseca, 
Honduras: Bay of Fonseca. 
Peru: Callao Bay; Chorillos; Iquique. 
Chile: Coquimbo Bay, Sept., Nov.; Vifia del Mar, near Valparaiso; Valdivia, Jan. 
Texas: Corpus Christi, July 
