Occasional Papers of the Museum of Zoology 5 



Flicker, Crested Flycatcher, Olive-sided Flycatcher, Wood 

 Pewee, Blue Jay, Crow, White-throated Sparrow, Song Spar- 

 row, Red-eyed Vireo, Canadian Warbler, Redstart, Brown 

 Creeper, Black-capped Chickadee, and Golden-crowned Kinglet. 



The Aspen Association : About three-fourths of the area 

 is characterized by this type of vegetation. Aspens occur on 

 the cut-over and burned-over pine and hardwood land, but 

 the birds did not seem to discriminate between them. The type 

 of vegetation is an upland thicket formed by young trees, of 

 which tremljling aspen {Po pubis trerniiloides) in the moister 

 parts, large toothed aspen (Populus grandidentata) in the drier 

 parts, white birch (Betnla alba papyrifera) and pin cherry 

 {Primus pennsyhanica) form nearly the whole tree population. 

 The ground vegetation is largely bracken (Pteris aquilina) and 

 bush honeysuckle (Dien'illa lonicera), growing" fairly densely 

 but not sufficiently so to hide the abundant sand. 



IHrds are rather plentiful in the aspens, particularly in 

 June and July. Those particularly characteristic are the A es- 

 per Sparrow, Chipping Sparrow, Towhee, Black-billed Cuckoo, 

 Yellow-bellied Sapsucker, Flicker, Whip-poor-will, Xight- 

 ha\\k, Wood Pewee, Cedar Waxwing, Red-eyed Vireo, Blue- 

 bird, l\irple Finch. Brown Thrasher, Red-headed Woodpecker, 

 Chestnut-sided Warl^ler, and Robin. 



The Hardwood Association : The hardwood type of vege- 

 tation has been so nearly destroyed by fire and wasteful meth- 

 ods of lumbering that only a vestige of its former condition 

 remains. Successions on the better types of land are leading 

 to hardwood but as yet they are in the aspen stage. The hard- 

 woods are typically dense high woods whose most important 

 trees are sugar maple (Acer saccharuni), beech (Fagus grandi- 

 folia) and hemlock (Tsiiga canadensis). The ground vegeta- 

 tion is scanty on account of the lack of light. 



