284 



ZOOLOGY— BIKDS. 



their course to the far north. By the last of May, nearly all had disappeared 

 from the low grounds ; and such stragglers as remained were lost sight 

 of a few days later, doubtless finding in the mountains adjacent all the 

 conditions necessary for their summer existence. As an abundant summer 

 resident of the mountains of Colorado, it has been found by Messrs. Allen 

 and Trippe ranging- from about 8,000 feet to the timber line. In the mount- 

 ains of New Mexico and Arizona it has not been found by any of the 

 expeditions in summer, nor do. I think it occurs there. 



In fall, they occur, if possible, even more abundantly than during the 

 vernal passage ; their numbers reaching the maximum in Arizona in Septem- 

 ber, at which time they are found from an altitude of 10,000 feet in the 

 shrubbery and weeds along the alpine streams to the lowest valleys. 



Among the hordes of sparrows found along the Gila River the middle 

 of September, no one species compared in its abundance with this finch. 

 The tall weeds and undergrowth seemed to be alive with these birds, dozens 

 of which woxdd be scared up at every step, and alight on the neighboring 

 trees. They spend all their time on the ground, searching for the small 

 seeds and insects which constitute then- food. When undisturbed, they are 

 perfectly silent, but occasionally, when startled, emit a sharp chirp. 



No. 



Sex. 



Locality. 



Date. 



Collector. 



Wing. 



Tail. 



Bill. 



Tarsus. 



i55 

 295 



■ J 

 8 4 



S6 



91 

 100 



IOI 



102 



'33 



746 



7S5 

 7S7 

 789 

 790 



3 n.d. 



Grass Valley, Utah 



do 



Sept. 10, 1S72 

 Sept. 14, 1S72 

 May 7, 1S73 

 May 14, 1S73 

 do 



H. W. Henshaw 











do 











c? ad. 





do 



2.41 

 2.52 

 2-57 



2. 2^ 



2.48 



2.64 

 2.23 



2-45 

 2-35 



2.54 

 2.57 



2-37 

 2.47 



2.46 



2-57 

 2.65 



2-33 

 2.4S 

 2.67 

 2. 26 

 2.50 

 2.40 

 2.67 

 2.70 

 2.47 

 2. 65 



0.45 

 0.44 

 0.45 

 0.45 

 0.45 

 0.45 

 0.44 

 0.49 

 0.4S 

 0.45 

 o-43 

 0-43 

 0.48 



0.79 

 0.81 

 0. 80 

 0.75 

 0.83 

 0.S2 



o-73 

 0.79 

 0. 76 

 0. 77 



0.75 

 0.75 

 0. 84 



<? ad. 

 <? ad. 

 9 ad. 

 i ad. 

 9 ad. 

 S ad. 

 S ad. 



9 



S 



9 



$ 



9 





do 





do 





May 15, 1S73 

 May 17, 1S73 

 do 



do 





do 





do 





do 



do 



Fort Garland, Colo . . . 



Gila River, Ariz 



do 



do 



May 25, 1S73 

 Sept. 11, 1873 

 Sept. 15, 1S73 

 do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 









