456 NORTH AMERICAN BIRDS. 



male : Head, all round, dull vcrmilion-i-ed, darker on crown, paler 

 on throat and upper chest. Immature male: Similar to adult, but 

 sides of head chiefly olive-green. {Adult female, unknown.) Length 

 about 6.00, wing 2.90-3.00, tail 2.70-2.90. Hah. Southern Mexico 

 (Temiscaltepec, Guanajuato, Vallej- of Mexico, etc.). 



P. erythrocephala (Swains.). Red-headed Tanager.' 

 a'. Wing marked with two white, yellow, or pinkish bauds across tips of middle 

 and greater coverts. 

 6". Wing more than 3.50. 



c'. Exposed culmen not longer than middle toe, without claw; back with- 

 out streaks. Adult male: Back, scapulars, wings, and tail black, 

 the wings with two broad yellow bands ; rump, upper tail-coverts, 

 and lower parts gamboge-yellow ; head and neck orange or red, 

 brightest on crown, where sometimes almost crimson. Adult fe- 

 male: Grayish olive-green above, the wing-bands dull light yellow, 

 or dull yellowish white ; lower parts pale grayish yellow, becoming 

 sulphur-yellow on under tail-coverts. Younr/ : Essentially like 

 adult female, but paler beneath and more or less distinctly streaked 

 with grayish or dusky, both above and below. Length 6.75-7.75, 

 wing about 3.50^.10, tail 3.20-3.55. Eggs .95 X .65, clear light 

 greenish blue or bluish green, find}- and rather sparselj' speckled, 

 chiefly on larger end, with clove-brown. Sab. Western United 

 States, north to British Columbia, cast to edge of Great Plains, 

 south, in winter, to Guatemala. 



607. P. ludoviciana (Wils.). Louisiana Tanager. 

 c'. Exposed culmen longer than miikllc toe, without claw; back distinctly 

 streaked with dusky. Adult males with head, neck, and lower parts 

 red, back and scapulars dull bi-ownish red or graj-ish, broadly 

 streaked with blackish ; wing-bands white or pale salmon-pink. 

 Adult females with red of males replaced bj- 3-ellow below and olive- 

 greenish above. 

 d^. Eather smaller, with relatively much smaller bill; red of adult 

 male much deeper — often intense Chinese-orange, or almost 

 orange-vermilion — the rump and ground-color of back reddish 

 brown or brownish red, and wing-bands usually distinctly pink- 

 ish. Adult female with yellow of lower parts and olive-green 

 of upper parts deeper. Length (skins) about 7.00-7.50, wing 

 3.60-3.90. tail 3.25-3.40, exposed culmen .00-.65, depth of bill at 

 base .33-38. Hab. Southern Mexico (north to Jalapa, Mirador, 

 Temiscaltepec, Sonora, etc.) and south to Chiriqui. 



P. bidentata .Swains. Spotted-winged Tanager.' 

 d}. Rather larger, with rolativel}- niuch larger bill; red of adult male 



' .fpcrmngra erythrocephala Swains., Philos. Mag. n. s. i. 1827, 437. Pyranga erythrocephala BoNAP^ 

 Rev. Zool. 1S51, 178. 



' Pyranja bidentata Swains., Philos. Mag. n. f. i. 1827, 438. 



