and Notes on the Birds of Arizona. .161 



occidentalis var. mexicanus, and C. latrans, and doubtless certain 

 of the FelidcE, besides Gulo luscus and some species of Mephitis 

 and Putoi'ius, though I have met with none of these latter. 

 Among the smaller mammals we have Erethizon dorsatum, 

 Lepus californicus, L. artemisia, Sciurus aberti, Tamias dorsalis, 

 Thomomys fulvus, Dipodomys ordii, &c. The last-named species 

 is the most abundant and characteristic of all. Species of Sper- 

 mophilus, Perognathus, Rhithodon, Arvicola, and Hesperomys 

 will doubtless be detected. 



And now as to the birdsj from which I have digressed in order 

 to give a more complete view of the natural -history features of 

 the place where I am at work. It will be seen at a glance from 

 the character of the vicinity, as regards the almost total want of 

 water in the shape of streams or lakes, that the avifauna is cut 

 down at once to the land-birds alone, and also that the moun- 

 tain-haunting species are chiefly represented. To this I may 

 add that the locality is sufficiently near the Pacific coast for its 

 Ornis to incline decidedly towards that of corresponding regions 

 in California. The list which I give is necessarily very incom- 

 plete, and it must be remembered that it is the result of less than 

 four months^ investigation ; but it will, I think, afibrd a pretty 

 good general idea of the avifauna, and show how rich a region 

 this is both as regards quantity and quality of its species. Many 

 birds as yet rare in collections are the very commonest here. 

 Since the 10th of August, when I began to collect, I have been 

 able to procure about six hundred specimens. I regret having 

 to furnish a list in which certain of the species are only approxi- 

 mately identified ; but I am without a single book to aid me, 

 and therefore am obliged to trust entirely to memory. This 

 must be my excuse for the deficiencies which are evident, as well 

 as for any errors that may hereafter be detected. 



Cathartes aura is abundant here, as at every point of my 

 route, but towards the latter part of October the species entirely 

 left us. Hypotriorchis columharius is not uncommon ; Tinnun- 

 culus sparverius is very numerous ; while Accipiter mexicanus, 

 Circus hudsonius, and Buteo montanus are very common. Several 

 other species of Buteo are found here, but I have not been able 

 to procure specimens, though I have in my collection a nearly 



