BULLETIN No. 36 7 1 



Bass. Here, too, on these most northern islands the Red- 

 winged Blackbirds were building in considerable numbers, al- 

 though there was no suggestion of swampiness along the stony 

 beach. True, the nests were placed low down in the brush. 



The din of screaming Terns, calling Blackbirds and warbling 

 Wrens was something to be remembered. Indeed, for hours 

 after leaving the vicinity the same sounds mingled with the 

 soughing wind and roaring surf. The Terns v\'ere nowwhere 

 so numerous that they obscured the sky, but their numbers 

 w ere uncountable on four of the smaller islands. Black Terns 

 mingled freely with the Common Terns, but were evidently 

 not breeding any»vhere in the vicinity. Likewise the American 

 Herring Gulls, few in numbers, were merely roosting out of 

 harms way. 



in all 58 species were recorded. The largest number, 42, 

 were found on Middle Bass. On one rock reef but four species 

 were present. 



One cannot resist the conclusion that this chain of islands 

 is a natural highway for the birds on their annual migrations. 



Lynds Jones, Oherlin, Ohio. 



BLUE-GRAY GNATCATCHER.POLIOPTILLA C/ERULEA.-ln my 

 tour of the woods on the loth of May, 1 found a nest of this 

 bird saddled upon the horizontal limb of a small post oak tree. 

 Nest about five feet from the trunk of the tree, and about ten 

 feet from the ground. Hillside, high open woods, adjoining 

 cultivated field, through which flowed a small stream. These 

 birds reared their brood undisturbed, nest taken July ist. 



Measurement, — Height, 2.75. Depth, 1.25. Top across, 

 outside 2.50, inside i.oo. Bottom, outside, 1.50; inside, i.oo. 

 Inside walls declining from circumference to center making a 

 shallow funnel shaped cup. 



Material. — Entire outside composed of lichens, held to- 

 gether by caterpillar silk, and the stems of the sensitive vine, 

 mixed with a quantity of a little nut brown husk, about one- 

 fourth of an inch in length, the name of which 1 could not de- 

 termine. This envelope was separated from the nest entire, 

 without falling apart, making a mat 5.50 inches long on one 



