May, 1913 
NOTES ON SOME MESA COUNTY, COLORADO, BIRDS 
111 
The skins were identified by Mr. H. C. Oberhol'^cr of the Biclogicsl Survey, to 
whom acknowledgments are due for this and other identifications mentioned be- 
yond. 
Agelains phoeniceus neutralis. San Diego Redwing. A small series ol red- 
wings collected at Mack were identified by Ohernolser as neutralis, making the 
fir,<t record for Mesa County. 
Zonotrichia leucophrys leucophrys. Wdiite-crowned Sparroyo Made its first 
appearance at Mack sometime between April 29 and May 6. I was aw'ay from 
there, out of the County, between those dates. It was common Ma}" 6. 
Zonotrichia leucophrys gamheii. Gambel Sparrow. This bird was common 
at hlack April 21, and remained so until the 29th. It no doubt left soon after 
that date for I saw none on mv return ]>day 6, when its place had been taken b)' 
the typical form. 
Spizella breweri. Brewer Sparrow. One collected and others seen, j\fay 6, 
near the Grand River, three miles west of Mack. First record for County. 
Junco oreganus shiifeldti. Shufeldt Junco. One collected near Mack, May 
6, and identified by Oberholser. First record for County. 
Junco hyemalis mearnsi. Pink-sided Junco. This species was seen and col- 
lected at Mack, April 26 and 27, and at the Sieber Ranch, May 12-15. The five 
specimens collected were all females, the males probably having left for their 
summer homes some time previously. Rock\vell gives this species merely a pass- 
ing mention, without locality, so I have thought it best to make this definite rec- 
ord. 
Amphispiza bilineata deserticola. Desert Sparrow. Seen and collected near 
Mack, April 23-27, the first record for Mesa County. The birds frequented a 
mesa with scattering cedars and pinons on it about two and one-half miles west of 
Mack, apparently preferring the low brush about the edges of the gulches and at 
the foot of the mesa. 
Lanivireo solitarius plumbeus. Plumbeous Vireo. Taken on Little Dolores 
Creek, near the Sieber Ranch, May 12. The first record for the County. 
Vermivora celata. Orange-crowned Warbler. Taken at the Sieber Ranch 
May 12, the first record for the County. The specimen was identified by Ober- 
holser as belonging to his subspecies orcstera, which, however, has not yet been 
accepted by the A. O. U. Committee. 
Dendroica nigrescens. Black-throated Gray Warbler. One collected at the 
Sieber Ranch May 10, and my notes say it was very common there May 14. 
Rockwell gives but one record of it, at Grand Junction. 
Polioptila caerulea obscura. Western Gnatcatcher. Collected at the Sieber 
Ranch May 10-14. Several were seen. This is another of the birds of which 
Rockwell gives but one record. 
SOME FURTHER NOTES FROM THE TAHOE REGION 
By MILTON S. RAY 
with two photos by OLUK J. HI'INF.M.\NN 
T he EIRST three weeks of June, 1909, were spent in field work at various 
elevations around the southern end of Lake Tahoe. From our varied ex- 
periences, however, I have only culled those notes which are most likely to 
be of interest. 
