498 Annals of the Carnegie Museum. 



The area covered by the present paper comprises, besides the 

 Peninsula and Presque Isle Bay, the lake shore plain and its environs 

 within about four miles of the city of Erie. For the sake of complete- 

 ness a. few notes referring to other (Pennsylvania) localities on the 

 lake have been included, as specifically stated under the head of the 

 various species involved. 



List of Species. 

 i. Colymbus holboellii. Holbcell's Grebe; Red-Necked Grebe. 



A transient visitant, possibly also a winter resident, apparently of 

 rare occurrence. A single female was shot November 17, 1900, in the 

 channel near the Life-saving Station, and kindly presented to us by 

 Mr. Frank Claus. In this specimen the red area of the throat was 

 plainly indicated, the color being obscured by white — the mark of an 

 adult bird. On November 26 a second specimen was secured by Mr. 

 Claus, and on October 27, 1901, one was shot by a local gunner, both 

 of which were immature birds, and are now in the Carnegie Museum. 

 The most recent record refers to a pair taken February 13, 1904, at 

 the mouth of Mill Creek, which specimens are also preserved in the 

 Carnegie Museum. 



2. Colymbus auritus. Horned Grebe. 



A regular migrant, quite common in the spring, and fairly abundant 

 in the fall. At the former season (in 1900) it was first recorded on 

 March 27, and none were noted after April 17. As a rule it was 

 found in small parties, although on one occasion (April 2) a compact 

 flock of a dozen was observed, which took wing upon pursuit in prefer- 

 ence to attempting escape by diving, as is usual. Male specimens 

 secured near the time of the vernal departure of the species were in 

 almost perfect breeding dress, but those taken earlier in the season 

 showed a considerable admixture of the light-colored feathers of the 

 winter plumage. In the fall the earliest record was for October 23, 

 when a small number were observed on the main lake, and from this 

 time until our departure it was noted almost daily, occasionally off 

 the outside beach, but most frequently on Erie Bay, and particularly 

 Misery Bay, the sheltered situation of which offered peculiar attrac- 

 tions. There were days in November when from ten to twenty indi- 

 viduals could be counted at once, although they never drew together 

 into a compact flock, and in their movements when feeding or when 

 pursued seemed to be entirely independent of one another. At this 



