140 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



part (Cuba; Corpus Christi, Texas). — Robinson, Proc. U. S. Nat. Mus., xviii, 

 1896, 656 (Margarita Island, Venezuela). — Cherrie, Auk, xiv, 1897, 402 

 (Santa Rosa Island, near Fort Pickens, Florida, breeding). — (?) Ames, Auk, 

 xiv, 1897, 412 (Toronto, Ontario, July 6, 1897; said to be third record).— 

 Salvin and Godman, Biol. Centr.-Am., Aves, iii, 1903, 359, part (Celestin, 

 Yucatan; Kansas? w. Gulf States). — (?) Fleming, Auk, xxiii, 1906, 452 

 (Toronto, Ontario, May, 1880 and July 6, 1897). — Beyer, Allison, and 

 KoPMAN, Auk, XXV, 1908, 180 (islands along coast of Louisiana during migra- 

 tion). — (?) Bunker, Kansas Univ. Sci. Bull., vii, 1913, 145 (a. w. Kansas; 

 rare summer resident). — Beyer, Proc. La. Soc.Nat. for 1897-99 (1900), 97 

 (common along coast of Louisiana). 



[/Egialitis] nivosa Sclater and Salvin, Nom. Av. Neotr., 1873, 143, part. — 

 Sharpe, Hand-list, i, 1899, 155, part. 



(?) [Aegialitis] nivosa Berlepsch, Journ. fiir Orn., 1887, 133 (Paraguay). 



Aegialites nivosus? (not of Cassin) Lawrence, Ann. Lye. N. Y., ix, 1869, 209 

 (Celestin, Yucatan; crit.). 



[^gialitis] nivosus Cory, List Birds West Ind., 1885, and revised ed., 1886, 25 

 (Cuba). 



CHARADRIUS COLLARIS Vieillot. 



AZARA'S RING PLOVER. 



Adults in breeding season (sexes alike). — Forehead (broadly) 

 suborbital and malar regions, and under parts immaculate white, 

 interrupted by a black loral stripe (from bill to eye) and a black band 

 across upper chest or lower foreneck, the latter broader laterally; 

 anterior half (more or less) of crown black; rest of pileum, and uppe-r 

 parts in general, grayish brown (deep drab or between drab and hair 

 brown), the feathers more or less distinctly margined with paler; 

 immediately behind the black crown-patch there is often (by no 

 means always) a narrow band of cinnamon, and there is a pronounced 

 tinge of that color along sides of occiput and on nape and hindneck; 

 postocular (supra-auricular) region usually whitish; auricular region 

 grayish brown ; greater wing-coverts margmed terminally with white ; 

 alulae, primary coverts, and primaries much darker grayish brown 

 than wing-coverts, the primary coverts, secondaries, and proximal 

 primaries margined terminally with white, the last with outer webs 

 white basally; middle rectrices dusky grayish brown distally, paler 

 (like back, etc., proximally); two outer rectrices, on each side, 

 wholly white (the second sometimes tmged on part of inner web with 

 pale brownish gray), the next (third) pale brownish gray tipped and 

 edged with white, the innci* web with a subterminal spot of dusky; 

 axillars and greater part of under wing-coverts immaculate white, 

 the under primary coverts pale brownish gray tipped with white; 

 bill black; iris dark brown; legs and feet flesh color (in life). 



Adults in nonhreeding plumage. — Similar to the breeding plumage 

 but feathers of upper parts (except remiges, etc.) distinctly margined 

 with dull buffy. 



Young. — Similar to nonbreeding adults, but without black crown- 

 patch; loral stripe grayish brown instead of black, and sometimes 



