324 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



e. Darker, with streaks of under parts more blackish; tipper parts with much 

 of rusty in winter. 

 /. Larger, with longer bill (wing averaging 103.1, tail 77.5, culmen 20.8, 

 tarsus 26.9); streaks on under parts more blackish, and upper parts 

 with more rusty in winter. 



Agelaius phoeniceus caurinus, adult female (p. 341 ) 

 ff. Smaller, with shorter bill (wing averaging 98.3, tail 74.2, culmen 19.3, 

 tarsus 25.9); streaks on under parts less blackish, and upper parts 

 with less rusty in winter. 



Agelaius phoeniceus phoeniceus, adult female (p. 331) 

 ee. Paler, with streaks of under parts more grayish; upper parts with little 

 if any rusty in winter. 



Agelaius phoeniceus neutralis, adult female (p. 339) 

 dd. Smaller, the wing averaging 93.7, tail averaging 71.1. (Coloration as in 

 A. p. phoeniceus, but averaging slightly darker. ) 



Agelaius phoeniceus floridanus, adult female (p. 333) 

 cc. Paler, the under parts with dusky or grayish streaks usually narrower than 

 the whitish ones, the upper parts with paler colors predominating. 

 d. Larger, with shorter and thicker bill ( wing averaging 105.5, tail 78.1, cul- 

 men 19.1, depth of bill at base 11.8). 



Agelaius phoeniceus fortis, adult female (p. 338) 



dd. Smaller, with longer and more slender 1 )ill ( wing averaging not more than 



102.4, tail not more than 73.4, culmen 19.3 or more, dei^th of bill at base 



not more than 10.2). 



e. Larger, except bill (wing averaging 102.4, tail 73.4, culmen 19.8, depth 



of bill at base 9.9, tarsus 26.7, middle toe 19). 



Agelaius phoeniceus sonoriensis, adult female (p. 337) 

 ee. Smaller (wing averaging not more than 92.7, tail 68.6, tarsus not more 

 than 25.6). 

 /. Under parts with ground color duller white, the dusky streaks broader; 

 white terminal margins to wing-coverts narrower. 



Agelaius phoeniceus richmondi, adult female (p. 335) 

 ff. Under parts witli ground coh ir purer white, the dusky streaks narrower; 

 white terminal margins to wing-coverts broader. 



Agelaius phoeniceus bryanti, adult female (p. 334) 



AGELAIUS TRICOLOR (Audubon). 



TEICOLORED BLACKBIRD. 



Adu/t iiiale in sunimer. — Uniform ^'lossy ])luo-bluck, the plumage 

 with a silky luster; lesser wing-coverts brownish carmine or dull 

 crimson-/ middle coverts white, in abrupt and conspicuous contrast; 

 bill, legs, and feet black; iris brown. 



Adult male in lointer. — Similar to the summer male, but plumage 

 still softer and more glossy and middle wing-coverts more or less 

 tinged with brownish biiff. 



Adult female in smnmer, — Above dusky, the plumage with a strong 

 greenish or bronzy luster in certain lights; pileiun narrowl}^ streaked 

 with brownish gray, most distinctly along the median line, where, 



^ Very different from the bright vermilion, scarlet, or orange of A. guhernator and 

 .A- phoeniceus and their subspecies. 



