ocr., 1899.] BIRDS. 129 
August 9 and 10, spotted young were collected, one with the brown 
sides coming in and one with the yellow just beginning to show. At 
Fig. 48.—Audubon Warbler (Dendroica auduboni). Drawn hy L. A. Fuertes. 
Sisson, Miss Merriam saw them the middle of July, and R. T. Fisher 
found them common the first half of September. 
111. Dendroica occidentalis. Hermit Warbler. 
Fairly common in the Hudsonian and upper part of the Canadian 
forest during August (collected at Squaw Creek Camp at intervals from 
August 3 to August 28); not seen in July. 
112. Geothlypis tolmiei. Macgillivray Warbler. 
Seen at Sisson and Wagon Camp about the middle of July, and again 
at the latter locality August 1 and August 3. One was shot in Mud 
Creek Canyon at an altitude of 6,700 feet by W. H. Osgood August 7. 
In July and August, 1883, C. H. Townsend found it not uncommon on 
the mountain. 
113. Geothlypis trichas occidentalis. Western Yellow-throat. 
At Big Spring, in Shasta Valley, W. H. Osgood found this warbler 
common in the tules September 17 to 20; and August 6, 1883, C. H. 
Townsend secured an immature specimen at the base of Mount Shasta. 
21753—No. 16——17 
