68 CALIFORNIA ACADEMY OF SCIENCES. 



mit Valley, Blue Lakes, etc. Their burrows vary from 

 five or six feet up to thirty or forty feet. The young 

 were still in the burrows at Blood's, July 21, 1880, but 

 in 1881 they were about a month earlier. The eggs, us 

 usual with woodpeckers, are glossy white. In Ornith- 

 ology of the Geological Survey of California the male 

 is called "Williamson's woodpecker," the female the 

 " round-headed woodpecker." Mr. Henshaw first dis- 

 covered that they were the same species. 



Ridgway. Both on the Sierra Nevada and in the 

 Wasatch. It was a winter resident among the pines 

 near Carson. 



Henshaw, 1879. Of rather frequent occurrence all 

 through the mountains. 



Hoffman. Found throughout the elevated coniferous 

 regions. 



Cooper, 1870. The first specimen that I met with was 

 a straggler in winter to the Colorado Valley. 



76. Ceophlceus pileatus ( Linn. ) PILEATED WOOD- 

 PECKER. 



Henshaw, 1876. Found in the Sierra as far south as 

 latitude 37, where I saw two individuals in October. 



L. B. Not rare in the densest pine and fir forests of 

 Central California where it is probably resident, as I 

 saw two at Big Trees, January 16, 1879, when snow 

 was two feet deep. Eel River, Mendocino County, com- 

 mon. 



Igo, Shasta County. E. L. Ballou. Common resi- 

 dent . 



Willamette Valley. 0. B. Johnson. Common in 

 heavy timbered districts. 



Cooper, 1860. An abundant and constant resident in 

 the forests of the territory. 



Suckle v, 1S(>(). Abundant in the vicinity of Fort 

 Steilaeooin in summer. 



