NATURAL SCIENCES OF PHILADELPHIA. 83 



white beneath the surface. Wing-coverts, scapulars, and intersca- 

 pulars narrowly bordered with pale yellowish-umber; rump and 

 upper tail-coverts bordered with rusty. Tail paler umber than 

 the back, narrowly tipped with white, and crossed by four bands 

 of brownish-black, the first of which is only partially concealed. 

 Scapulars and upper tail-coverts showing much concealed white, 

 in form of roundish spots, on both webs. Beneath clear white, 

 without any yellowish tinge; throat with a medial and lateral 

 series of clear dark-brown streaks; jugulum, breast, sides, flanks, 

 and abdomen, with numerous stripes of clear sepia, each showing 

 a darker shaft-streak; tibia? with longitudinal streaks of paler and 

 more rusty brown ; lower tail-coverts immaculate. 



Young female (6876 "Sacramento Valley, Cal. ;" Dr. Heermann 

 probably from Pennsylvania, type in Hist. N. Am. B., III. p. 

 231): Similar to young male; more varied, however. The black 

 middle streaks of feathers of head above narrower, causing more 

 conspicuous streaks; white spots of scapular region considerably 

 exposed; longitudinal stripes beneath narrower and more sparse. 



Young male (Fort Tejon, California, type of var. Mexicanus, 

 torn. cit. 232): Forehead, crown, occiput, and nape, deep rusty- 

 rufous; feathers with broad longitudinal streaks of pure black. 

 Rest of upper parts deep umber, darkest on the back; feathers of 

 back and rump, the upper tail-coverts, scapulars, and wing-coverts, 

 broadly bordered with rusty; scapulars with concealed white spots. 

 Tail ashy-umber, tipped (more broadly than in adult) with ashy- 

 white, crossed by four broad bands of brownish-black ; the last 

 (or subterminal) of which is broadest, the first concealed by the 

 coverts. Secondaries and primaries similar in color to the tail, 

 but darker; the first showing five obsolete darker bands, and 

 tipped (rather broadly) with pale cinnamon-rufous. Far-coverts 

 and cheeks fulvous-white, thickly streaked with dark brown. 

 Lower parts white, washed with ochraceous on jugulum and 

 breast ; each feather with a central longitudinal lanceolate stripe 

 of clear umber, the shaft of each black; these streaks are very 

 narrow on the throat, broadest on the breast and flanks. Tibiae 

 with transversely ovate spots, and transverse bars of reddish- 

 umber; lower tail-coverts with narrow shaft-streaks of darker 

 brown. Lining of wing with cordate and ovate spots of dark 

 brown. 



Young female (42,136, Orizaba, Mexico; M. Botteri, type in 



