140 BULLETIN 80, UNITED STATES NATIONAL MUSEUM. 
part (Cuba; Corpus Christi, Texas).—Rozinson, Proc. U.S. Nat. Mus., xviii, 
1896, 656 (Margarita Island, Venezuela).—CHERRIE, Auk, xiv, 1897, 402 
(Santa Rosa Island, near Fort Pickens, Florida, breeding).—(?) Amzs, Auk, 
xiv, 1897, 412 (Toronto, Ontario, July 6, 1897; said to be third record),— 
Sazvin and Gopman, Biol. Centr.-Am., Aves, iii, 1903, 359, part (Celestin, 
Yucatan; Kansas? w. Gulf States)—(?) Fummine, Auk, xxiii, 1906, 452 
(Toronto, Ontario, May, 1880 and July 6, 1897).—Bryxr, ALtison, and 
Korman, Auk, xxv, 1908, 180 (islands along coast of Louisiana during migra- 
tion).—(?) Bunxer, Kansas Univ. Sci. Bull., vii, 1913, 145 (8. w. Kansas; 
rare summer resident).—Bryer, Proc. La. Soc.Nat. for 1897-99 (1900), 97 
(common along coast of Louisiana). 
[Hgialitis] nivosa Scuarer and Sanvin, Nom. Av. Neotr., 1873, 143, part.— 
Ssarre, Hand-list, i, 1899, 155, part. 
(?) | Aegialitis] nivosa BertepscaH, Journ. fir Orn., 1887, 133 (Paraguay). 
Aegialites nivosus? (not of Cassin) Lawrence, Ann. Lyc. N. Y., ix, 1869, 209 
(Celestin, Yucatan; crit.). 
[Agialitis] 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 upper 
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 margined terminally with white; 
alule, 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 tinged on part of inner web with 
pale brownish gray), the next (third) pale brownish gray tipped and 
edged with white, the inner 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 nonbreeding 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 
