QUISCALUS. 381 
coverts; length about 11.50-13.50, wing 5.70-6.50 (5.94), tail 
5.40-6.30 (5.98), exposed culmen 1.20-1.42 (1.34). Eggs 1.27 x 
86. Hab. Hastern Mexico, north to southern Texas, south to 
Nicaragua. 
512. Q. macrourus Swains. Great-tailed Grackle. 
c. Adult male with tail not more than 7.50, 
d', Plumage (both sexes) essentially as in Q. macrourus, but size very 
much less. 
Adult male: Length 14.00-15.70, wing 6.25-7.05 (6.62), tail 
6.20-7.60 (6.92), exposed culmen 1.36-1.43 (1.40). Adult fe- 
male: Length about 11.00-11.75, wing 5.15-5.50 (5.32), tail 
4.80-5.20 (5.00), exposed culmen 1.15-1.18 (1.17). Hab. 
Western Mexico (north to mouth of Colorado River ?). 
Q. graysoni Sct. Grayson’s Grackle.! 
@. Adult male with metallic gloss greenish, changing through steel- 
blue on back, scapulars, lesser wing-coverts, and lower breast to 
violet on head, neck, chest, and upper breast; length about 
15.00-17.50, wing 7.00-7.50 (7.22), tail 6.80-7.55 (7.14), exposed 
culmen 1.48-1.68 (1.59). Adult female: Similar in color to 
same sex of Q. macrourus, but lighter and more tawny beneath, 
and much browner above, the head and neck of an umber tint; 
length about 11.50-13.00, wing 5.55-5.75 (5.61), tail 5.10-5.55 
(5.31), exposed culmen 1.14-1.30 (1.24). Eggs 1.24 x .89. Hab. 
South Atlantic and Gulf coast of United States, north to Vir- 
ginia, west to Texas. 
513. Q. major VixniLL. Boat-tailed Grackle. 
b%. Bill more slender (greatest depth, at base of gonys, not more than .35 in 
male or .30 in female; adult female with top of head, hind-neck, and 
upper back bright rusty brown, the lower parts bright tawny, becoming 
buffy on belly and dusky on flanks and under tail-coverts. 
Adult male: “ Uniform dark purplish black, with slight metallic reflec- 
tions; wings and tail dark shining black . . length 13 inches, 
wing 6.7; tail, middle rectrice 7, external 43.” Adult female : 
Length about 10.00-10.50, wing 5.20, tail 4.40-5.10, exposed culmen 
1.12. Hab. Central Mexico. 
Q. tenuirostris Swarns, Slender-billed Grackle.? 
1 Quiscalus palustris “Swarns.,” of auTHoRS, but not of Swainson. Quiscalus graysont Scx., Cat. B. Brit. 
Mus. xi. 1886, 307. 
2 Quisealus tenuirostris Swains., An. in Menag. 1838, 299. 
