Vol. XXXl-j Rockwell and Wetmore, Birds of Golden, Colorado. 331 



around aU the cottages on Lookout Mountain, becoming very tame and 

 raising two broods. They were last seen October 2 



97 Certhia familiaris montana. Rocky Mountain Creeper.- 

 First seen September 19, when one was taken in the pmes on Lookout 

 Mountain. They were heard and seen occasionaUy up to the last of 

 October in this same locality, but we took no more specimens. None were 

 noted during the spring. 



98 Sitt: carolinensis nelsoni. Rocky Mountain Nuthatch.- 

 Common resident in the foothills and found sparingly along Clear Creek 

 and Bear Creek. Most of them preferred the higher altitudes and were not 

 found below 7000 feet. In August the young birds began to work down the 

 slopes and by September 1 they were scattered over the entire region. The 

 molt was not wholly finished until the first of October. 



99 Sitta canadensis. Red-breasted Nuthatch.- One taken on 

 October 10 on Lookout Mountain was the only one seen. Our attention 

 wafattracted to it by its thin pipmg note, but it was fifteen nrniuj.s befoj. 

 we could locate it among the pines and another ten before it was finally 



'Too '^' Sitta pygmaea pygmsea. Pygmy Nuthatch.- One of the 

 commonest bird! in the mountains above 7,000 feet. In Apnl -d^^^^^^ 

 found them in flocks of twenty-five or thirty huntmg fearlessly through the 

 pi^es, giving their soft notes continually and travehng rather rapidly. 

 They were paired by the first of June and on the 6th, we ound a nest con- 

 Snfng five'fresh eg'gs. The nest was in an old woodpecker hole ma stub 

 about twenty feet from the ground, and was made up ^//-^^^^^^^^^^ 

 The adults were much excited when we approached, and it ^ook onty a ht le 

 search to find the nest. All through August we found smaU f amily paities 

 of these birds and by September they were in full plumage, much brighter 



lored than in spring. Nearly all the ^P-i-^-^^^^^X^rul btk 

 have the feathers of the abdomen much worn, probably by the rough bark 

 of Ihe p nes About the first of October they greatly decreased in numbers 

 though a few were noted until the close of our collectmg trips m November 

 lof Penthestes atricapillus septentrionalis Long-tailed 

 Chickadee.- During the spring and summer we found these birds spar 

 ingly along Clear and Bear Creeks but they did not appear in the foothiUs 

 untU September 26. By the middle of October they were fau-ly common 

 and continued so until our observations ended. With the coming of snow 

 nihe mountains in November they increased in numbers along the ^^^^^ 

 and were found in small flocks. In the mountains they appeared to avo^ 

 the pines and spruces as feeding grounds, and were found only m the 

 Quaking aspens or occasionally in clumps of mountam maple^ 



102 Penthestes gambeli gambeli. Mountain Chickadee.- 

 Common resident in L mountains above 7,000 feet. They w^e very 

 common until the first of May and then decreased m number. A few ^ere 

 noted during June at the highest altitudes, and by July 18 they were lead ng 

 ?hr young through the pines. July and August specimens were very 



