Description of Neiv Birds from Mexico. 67 



Description of type. Crown and nape mottled with black and dark 

 chestnut ; feathers on mantle with fine whitish shaft lines; webs grayish 

 next shaft lines and shading outwardly into fine black mottling and then 

 into a wash of dark vandyke-brown, deepest on borders. Back mottled 

 with dull buffy -gray and blackish, former color predominating anteriorly ; 

 rump and upper tail coverts dark gray mottled with buffy and blackish, 

 heaviest on tail coverts where some feathers have heavy shaft spots or 

 lines. Tail blackish with irregular bars of grayish and buffy mottling. 

 Scapulars, tertials, and wing coverts with bright narrow shaft lines of 

 pale buffy ; upper webs of scapulars and wing coverts heavily marked 

 with transverse bands of black and dark reddish-brown, lower webs gray 

 with irregular brown and black lines along edges ; tertials rich reddish- 

 brown mottled with blackish and broadly bordered with black and edged 

 with a golden-buffy line. Primaries and secondaries gray, former with 

 pale buffy spots along outer webs ; latter barred irregularly with brown 

 and buffy mottling. A broad superciliary stripe of rufous-buffy extends 

 from bill to sides of nape, palest posteriorly. Ear coverts mottled black 

 and brown ; lores white ; some feathers of lores and line below eyes 

 tipped with black; feathers on sides of neck, just back of ear coverts, 

 heavily tipped with black ; chin, throat, and cheeks rich reddish-buffy. 

 Lower neck, breast, and flanks gray with wash of dull olive-brown on 

 edges of feathers and heaviest on flanks ; the feathers have fine, sharply 

 defined white shaft lines with transverse series of fine dark mottlings. 

 Chest and abdomen white; feathers of under tail coverts buff with heavy, 

 irregular dark bars and mottlings on basal two-thirds. 



Dimensions. Wing 129 ; tail 49 ; culmen 14 ; tarsus 36. 



Description of female. Differs from male in having the rufous and rufous- 

 buff areas on head replaced by dark ashy-gray, and the gray area on 

 breast and flanks replaced by rufous. Crown, dark grayish-brown, finely 

 mottled with black and faint traces of rufous ; feathers of nape black, 

 barred subterminally with dark reddish-brown ; a broad gray superciliary 

 stripe terminates in a buffy line on each side of nape; ear coverts black 

 in front, gray posteriorly. Feathers on hind neck gray and dull rufous- 

 brown with whitish shafts and black spots near tips. Mantle with paler 

 shade of gray and buffy markings. Pattern on scapulars, tertials, and 

 wing coverts similar, but the brown decidedly redder and more pro 

 nounced. Back, rump, and upper tail coverts very similar, but tail coverts 

 richer buffy with heavier black centers. Tail black, irregularly mottled 

 transversely with gray, rufous, and buff. Chin and throat ashy, feathers 

 black-tipped on sides of throat. Sides and lower part of neck, breast, 

 and flanks marked with fine pale shaft streaks ; general color of this area 

 dull reddish-brown, richest on sides of neck and breast, duller and grayer 

 posteriorly. Middle of chest and abdomen pale buffy ; under tail coverts 

 buffy, with heavy black markings. Dimensions : Wing 130 ; tail 45 ; cul 

 men 13.5; tarsus 34. 



A female from the Volcano of Santa Maria, Guatemala, is very similar 

 to the one from San Cristobal, but is a trifle more rufous, with abdomen 

 pure white and lower webs of scapulars and wing coverts brown and 



