STCIIXELLA. 371 



Male: Length about 8.50, -iviiig 4.15-4.30, tail 3.30-3.C0, ciilincii 



.92-95, depth of bill at base .48, tarsus 1.10-1.15. Ftmale : 



Length about 7.00, wing 3.70-3.80, tail 3.05-3.25. Hab. Cuba. 



A. assimilis Gundl. Cuban Red-wing.' 



v. Adult male glossy blue-black, the plumage with a soft silky texture, the 



lesser wing-eovcrts deep crimson or burnt-carmine, the middle coverts 



■white (tinged with buff in winter plumage) ; adult females with the 



plumage very soft or eilky in texture. 



Adult male : Glossy blue-black, the lesser wing-coverts rich burnt- 

 carmine, red posteriorly (next to white or pale buffy middle coverts), 

 pure rich scarlet toward the shoulders) ; middle coverts white, 

 more or less tinged -with buff; in winter, feathers of back and 

 under parts bordered terminally with dull light brown (not rusty), 

 and middle wing-coverts more decidedly tinged with buff; length 

 about 8.50-9.00, wing 4.70^.90 (4.83), tail 3.50-3.85 (3.67), culraen 

 .90-.98 (.93), depth of bill at base .38-.40 (.40), tarsus 1.10-1.20 

 (1.13). Adult female : Very similar in color to same sex of A. guber- 

 nator, but decidedly graj-er in general cast of plumage (correspond- 

 ing stages being compared), and texture of plumage decidedly 

 softer or smoother;' length about 7.00-7.50, wing 4.10-4.40 (4.23), 

 tail 2.95-3.60 (3.16), culraen .78-.82 (.80), depth of bill at base .31- 

 .38 (.35), tarsus 1.00-1.08 (1.04). Eggs .94 X -67. Hab. Valleys of 

 Pacific coast, from southern California to western Oregon. 



500. A. tricolor (Nutt.). Tricolored Blackbird. 



a\ Win£r exceeding tail by decidedly less than length of tarsus ; sexes not apprerialily 



different in color, the lesser wing-coverts (in both sexes) tawn\- ochraceous. 



Plumage entirely glossy black, except lesser wing-coverts. Male: Length 



about 7.25, wing 4.00, tail 3.35, tarsus .95. Female : Length about 6.77. 



wing 3.80, tail 3.10, tarsus .90. Hab. Cuba. 



A. humeralis (Tig.). Vigors's Red-wing.' 



Genus STURNELLA Vieillot. (Page 365, pi. CIV., fig. 1.) 



Species. 



Common Cn.\RACTERS. — Adult : Above brownish or grayish, striped and barred 

 with black ; crown divided medially by a whitish or buffy stripe ; side of head 

 whitish, with a duskj- streak behind eyes; throat and breast bright yellow; a black 

 crescent on chest ; flanks and under tail-coverts whitish, streaked with dusky ; 



' Agrtni,,, n»;mii;> (fjrxpi,. M?S.) Lemb.. Aves dc Cnba, T.'^.'in, M. pi. 9, fig. S. 



' I have been unable to discover any infallible or positive difference in plumace between the females of .-1. 

 Irienlur and A. yubernntor, except that in the trxttirt, which can only be depended on as a test after one hi\t 

 become used to comparins specimens : the female of A, fiuhernnlor averages decidedly browner, however, witt 

 relatively shorter and stouter bill, usually more rounded tail, and slightly shorter tarsus. 



Leittf humtralit Vic, Zool. Jour. iii. 182S, 442. Agelaiut humeralit BoNAP., Consp. i. 1850, 430 



