Jones — On Birds of Cedar Point. 6:3 



berry, with a few cherry trees and berry bushes. A thick 

 grass grows along the forest -margin and even beneath the 

 trees. On every visit there have been large numbers of nests 

 of Common Tern everywhere except in the middle of the 

 forest. On the 1904 trip to this island numbers of large 

 snakes, presumably 'Black' snakes (Bascanion constrictor) 

 were found, and the terns' nests were much fewer than on 

 other visits. This island, if any of the group, would be the 

 one best suited for the nesting of the Herring Gulls, but there 

 has never appeared any evidence of the nesting of these birds 

 on the island, nor on any others of the group. It is true that 

 the gulls have been numerous in this region on every visit, 

 but so are they all summer near the south shore of the lake. 

 It is likely that they are not breeding- birds. 



The mainland region under discussion lies mostly within 

 the basin of Lake Erie when it was at flood. The oldest and 

 southernmost beach lies about 4 miles north of Oberlin, swing- 

 ing up the Black River valley to within a mile of a line running 

 through Oberlin east and west, and up the Vermilion River 

 valley to Birmingham. The vegetation of the region is typi- 

 cally Carolinian, and dififers little from that of the north shore 

 of Lake Erie. The two rivers mentioned, and the Huron 

 River, have worn deep, narrow gorges well into the shale 

 which underlies the whole eastern part of the region, in 

 places capped with sandstone. Westward and Put-in-Bay 

 quadrangles, the outcropping rock is limestone. All of the 

 streams trend in a general north and south direction. The 

 valley of the Sandusky River is clearly the most important 

 one from a migrational standpoint, connecting, as it does 

 with the head waters of the Scioto. I believe that proof 

 will be forthcoming that one of the main " fly lines " 

 across Ohio, for both vernal and autumnal migrations 

 is this Scioto-Sandusky River-Pelee route. It will be 

 necessary to establish several observation stations from the 

 Ohio River to Point Pelee, including each of the islands in 

 the direct line, to conclusively prove it. 



]\ly visits to the northerly lying islands indicate that a 



