below the Cameron Pass Camp; common in the sage brush in the North Park. June 30, between Walden and Hell Creek, a good many young were seen just able to run about; and July 5, while driving from the last-named place to Lake John, more were seen, including one which was captured and photographed. At Lake John I found near our camp a nest with three fair-sized young; going there the next day xvith the camera I found the nest empty, but a garter snake was found with a suspicious swelling in its middle, and executed. I meant to have killed it so as to have preserved it for a specimen, but forgot myself and blew its head off. At the same locality, July 7, a nest with four small young was found. It was at Steam,at Springs, and often seen between there and Arvada.
An image should appear at this position in the text.Fig. 39. NEST OF THE WHITE-CROWNED SPARROW;
MOUNI ZIRKEL, 105000 FEET. JULY 11, 1911
68. Passerculus sandwichcrisis alaudinus. Western Savannah Sparrow. Seen at Walden; at the upper and lower bridges over the Noah Platte; about the meadows at Hell Creek. At various times small sparrows were seen about the flooded meadows in the Park, which were no doubt this species, but the super- abundance of mosquitos in those places did not encourage one to investigate very closely.
69. Chondestes grammacus strigatus. Western Lark Sparrow. Seen near Fondis, at River Bend and Cedar Point. At the latter place, May 27. while the birds seemed to be mated. they were not yet nesting. It was noted a few times between River Bend and Deer Trail, and then at Fort Morgan, Wild Cat Creek. Pawnee Buttes. and from there to Fort Collins, anti thence to near Log Cabin. Seen several times between Steamboat Springs and Toponas. and near Golden.
70. Zonotrichia leucophrys. White Crowned sparrow. First seen at Chambers Lake. and was rather common at the Cameron Pass Camp. It was common about Mr. Zirkel. where it ranged at least to timberline. July 11 we found a nest containing four eggs in a scrubby spruce at an altitude of 10,575 feet, just below timberline. An odd thing about this nest was that the day before we had set a mouse trap on the ground almost directly under the nest, and tied the marker to the bush over it. The bird must have flushed then without being noticed, or else was not sitting, and the nest itself was well hidden. She was on the nest and flew off the day we discovered it. The nest was about two feet above the ground, and built mostly of fine grass. The species was noted at the Buffalo Pass saw mill, where it was quite tame and familiar, and was also at Buffalo Pass. Seen several miles south of Yampa, at Rock Creek on the Gore Pass road, east of Coulter. and on Vasquez Creek.
71. Spizella passerina afizonæ. Western Chipping Sparrow. May 19
