Appendix. 



174. Mockingbird; Mimus polygiottos (Linn.). 



Length about ten inches. The young mocking- 

 bird resembles very closely the adult of the pre- 

 ceding species. Adult above grayish, inclining 

 to brownish or ashy; below dirty white, un- 

 marked; wings and tail dark brown, with white 

 spots and edgings on former and much white on 

 the latter (the outer pair entirely white). Com- 

 mon in southern California, apparently growing 

 less abundant north of Los Angeles. 



175. Cahfornian Thrasher; Harporhynchus redi- 

 vivus (Gamb. ) . 



The western representative of the common eastern 

 brown thrasher. A large, active bird (length 

 twelve inches) with a long curving beak and a 

 long tail. It lives in the sage-brush and shrub- 

 bery, flying with considerable rapidity and 

 avoiding observation. It has a loud and varied 

 song. Above dark olive-brown, below bufFy; 

 grayish brown on breast, paler on throat and 

 rufous in tone on under tail-coverts. Southern 

 California and interior valleys well to the north- 

 ward. Apparently resident over most of its 

 range. A paler form known as the Pasadena 

 thrasher has been described from southern Cali- 

 fornia by Joseph Grinnell. 



176. Leconte's Thrasher; Harporhy?icJUs lecontei 

 (Lawr. ). 



Similar to the preceding but much paler. It looks 

 like a faded specimen of the Californian 

 thrasher. Rather rare on the Colorado Desert, 

 wnere it breeds. 



