The Avifauna of the Lake Erie Islands. 97 



sirle of the Point, and the self-planting of trees on the west 

 side. The series of parallel ridges are parallel to the west 

 side, but not to the east side. 



Asummary of the work done follows in the language of two 

 of the students, supplemented later by a list of the birds and 

 their dates of occurrence. These reports undertake to give a 

 brief survey of the more prominent ecological features that 

 have some bearing upon the distribution of the birds. 



Report on the Ecology of Pelee Lsland, Summer of 1910. 



Part I. 



niRD CONDITIONS BEFORE THE BEGINNING OF MIGRATIONS. 



Before the beginning of the migrations the birds were di- 

 vided into four distinct groups ecologically ; one of which has 

 several further subdivisions. These are the birds found in 

 the woods on the point, the marsh birds, the water and 

 beach birds, and the birds found inland, mostly about culti- 

 vated fields or small woodlots. 



Under the first group, that of the woods birds, there are 

 three subdivisions, the birds of the cedars, the birds of the 

 deciduous belt, and the birds that frequented both indiscrimi- 

 nately. 



The birds found distinctively among cedars were the Screech 

 Owl, Cardinal, Cedar Waxwing, Pine Warbler, and Brown 

 Thrasher. Of these Cardinal, Cedar V\^axwing, and Thrasher 

 deserve especial mention because of their great abundance, es- 

 pecially considering the northern locality. The Pine Warbler 

 must have nested there, which is a good record. The Screech 

 Owl was probably seen only in the cedars because we were 

 there most after dark. 



Of the birds seen only in the deciduous belt, the Hairy, 

 Downy and Red-headed Woodpeckers stayed among the tall 

 trees with dead tops, found at the base of the point. The Blue 

 Jay, Warbling A^ireo and Crested Flycatcher, as well as the 

 Black-billed Cuckoo, also stayed in these tall trees, among 

 the dense foliage. The Towhee and Catbird stayed in the 



