570 Colorado College Publication 



Junco meamsi. Pink-sided Junco. 



Winter resident ; common. Arrives early in October, 

 possibly usually not until the second week ; earliest record 

 September 30, 1913. Departs in April, lingering longer than 

 either of the Juncos previously mentioned. Latest date May 

 4, 1872. 



The most numerous of the Juncos, and usually forming 

 the greater proportion of the flocks one meets w^ith, but in 

 the winter does not usually go high into the mountains, keep- 

 ing more to the foothills and plains. It is always to be found 

 in Monument Valley Park in winter with the flocks of Tree 

 Sparrows. Possibly the reason they stay later in spring than 

 the other species is that they have not so far to go to 

 reach their breeding grounds, as many spend the summer it. 

 Wyoming. 



Junco phseonotus caniceps. Gray-headed Junco. 



Resident; common. 



This, our resident Junco, breeds commonly in the moun- 

 tains down to 7,500 feet. It spends the winter in the foothills 

 and on the plains in varying numbers, but it is safe to say 

 that at that season it is always outnumbered by the Pink- 

 sided Junco, and frequently by the White-winged. It prefers 

 the foothills to the plains. Sometimes flocks of Juncos are 

 seen which contain a large percentage of this form ; one good- 

 sized flock seen by Warren on Bear Creek near the mouth of 

 the canon, November 18 and 20, 1912, seemed to be fully one 

 half of this species, the rest Pink-sided ; usually the proportion 

 is much smaller. Ordinarily but one or two at a time are seen 

 in Monument Valley Park. The majority of our summer 

 birds probably go south in winter, many of the winter resiaents 

 coming from other localities. 



The nest is built on the ground, sometimes in a cavity in 

 a roadside bank or a stream bank. One found by Rockwell 



