84 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



that has actually traveled from central California to southeast- 

 ern Arizona. Such action would be so remarkably at variance 

 with all known conditions prevailing among the subspecies of 

 Thryomanes of the central valley and coast regions of Cali- 

 fornia that I do not for a moment consider that it is to be 

 taken into account in explaining this circumstance. 



As affording additional evidence to the contrary, there is in 

 my series a molting bird taken in the Huachuca Mountains, 

 Arizona, August 17, 1902 (no. 3082, Swarth coll.). This 

 specimen, covered with pin feathers, and with rectrices and 

 remiges but partly grown, is assuming a dorsal coloration 

 far more rufescent than the average of eremophihis, freshly 

 molted birds being used in comparison, and it is closely simi- 

 lar to the Chiricahua Mountain bird just described. Yet there 

 can be but little doubt that this individual was in its summer 

 home when captured, and that it is representative of an extreme 

 of color variation occasionally reached in the subspecies 

 eremophihis. 



LITERATURE CITED 



American Ornithologists' Union Committee, J. A. Allen, 

 Chairman and Editor. 

 1901. Tenth supplement to the American Ornithologists' 

 Union Check-list of North American birds. 

 Auk, 18, pp. 295-320. 

 1910. Check-list of North American birds. Ed. 3, re- 

 vised (New York, American Ornithologists' 

 Union), 430 pp., 2 maps. 



Bendire, C. 



1877. Notes on some of the birds found in southeastern 

 Oregon, particularly in the vicinity of Camp 

 Harney, from November, 1874, to January, 

 1877. Proc. Boston Soc. Nat. Hist., 19. pp. 

 109-149. 



Grin NELL, J. 



1901. Midwinter birds at Barstow. Condor, 3, pp. 70-71. 

 1908. The biota of the San Bernardino Mountains. Univ. 

 Calif. Publ. Zool., 5, pp. 1-170, pis. 1-24. 



