P.IRDS. 



129 



August and 10, spotted youiij; were collected, one with the brown 

 sides coming in and one with the yellow just beginning to show. At 



Fig. 43.— Authibon Warbler {Dendroica anduboni). Drawu bj- L. A. Fucrtes. 



Sisson, INIiss Merriam saw them the middle of July, and II. T. Fisher 

 fonnd them common the tirst half of September. 



111. Dendroica occidentalis. Hermit Warbler. 



Fa,irly common in the Hudsoniau and upper part of the Canadian 

 forest during Angust (collected at Scjuaw Creek Camp at intervals from 

 August o 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 G,700 feet by W. II. Osgood August 7. 

 In July and August, 1883, C. H. Towusend 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 G, 1883, C. H. 

 Townsend secured an immature specimen at the base of Mount Shasta. 

 21753~No. 10 17 



