Vol 'i9of VI ] General Notes 87 



buildings, to which the birds hold very close during the winter. In the 

 spring, a few nests are placed in the garden and other locations, close to 

 the protecting influence of the household. I have observed the birds to 

 be far more quiet and approachable, by persons to whom they were accus- 

 tomed, than any 'Bob- whites' which have come under my observation. 



Columba fasciata. Band-tailed Pigeon. — It is not unusual to see 

 small flocks of these birds in Estes Park. I have observed them every 

 summer, mostly during the latter half of the summer, indicating their nest- 

 ing at some other locality with a late summer movement or flight. 



Otus flammeola. Flammulated Screech Owl. — One nest with female 

 bird found and taken in Estes Park, June 15, 1903; now in Collection at 

 the State Agricultural College, Fort Collins, Colo. Also one nest with 

 female taken from same vicinity, June 18, same year, now in the Collection 

 of the Hon. J. E. Thayer, Lancaster, Mass. 



Myiarchus cinerascens. Ash-throated Flycatcher. — A specimen 

 of this bird, with nest and eggs, taken in the Naturita Valley, south- 

 western Colorado, by C. H. Smith, was sent to me for identification. Mr. 

 Smith reports it as "a summer resident, fairly common." 



Empidonax traillii. Traill's Flycatcher.— Found nesting June 30, 

 1904, west of Estes Park, at an elevation of 10,000 feet. Also found nest- 

 ing at a slightly lower elevation, but in the same country, July 5, 1905. 

 Both nest situations were identical, in that they were located three and 

 four feet from the ground, upon a root of the upright stand, formed by the 

 roots and adhering dirt of large overturned pine trees. Surroundings 

 wet and swampy. 



Corvus corax sinuatus. American Raven. — A constant resident in 

 the heavy canon of the San Miguel River, southwestern Colorado. Nests 

 are situated on inaccessible ledges against the canon wall midway between 

 top and bottom. If the nest is disturbed the birds will choose a more 

 difficult place for another nest, giving evidence of an instinct far superior 

 to that of the Golden Eagle in this respect. If not disturbed the same 

 nest is used from year to year. 



Coccothraustes vespertinus montanus. Western Evening Grosbeak. 

 — In August and September of 1902, I found young birds at two places 

 in the mountains, between my farm at the foot-hills, Boulder Co., and 

 Estes Park. In 1903 the birds were abundant throughout Estes Park 

 and westward to higher altitudes, 7500 to 9500 feet. In 1904 they were 

 equally abundant, but during the following three years they were absent 

 from that locality. 



On July 4, 1903, a nest was found in Estes Park, at an elevation of 

 approximately 9000 feet. It was in a large pine tree, on a heavily wooded 

 hillside, and about forty feet from ground, halfway out on a long limb and 

 dangerous to obtain. 



Amphispiza nevadensis. Sage Sparrow. — One specimen, male, taken 

 at my Boulder County farm, east of the foot-hills, March 18, 1904. 



Guiraca caerulea eurhyncha. Western Blue Grosbeak. — During 



