11 



When at Lake Walden, sitting on a height overlooking the lake, 

 he said that he looked down into the water and saw two 

 Horned Grebes pursuing fish. The fish, which were there in 

 great numbers, seemed to be pond minnows. Mr. Clark said 

 that he could see the under-water movements of both birds and 

 fish clearly. The birds seemed to open their wings partly and 

 use them with quick, strong strokes in pursuing the fish under 

 water. In catching the fish they darted the head and neck 

 to right and left. Mr. Clark's notes were taken down at the 

 time. In June, 1921, when I began to investigate the matter 

 more fully, I wrote to Mr. Clark's companion on the Lynn 

 Woods trip, Mr. Walter E. Bates of Lynn. He remembered the 

 circumstances of the case, especially the perfect situation where 

 they had observed the birds, which was on an elevated promon- 

 tory from which, with the sun at their backs, they looked down 

 at the birds so that their course through the water could be 

 followed easily. He was not then aware of the importance of 

 the observation. He recalls that the birds moved with mar- 

 velous speed, but he does not now remember positively whether 

 or not they used their wings. 



Mr. Ludlow Griscom of the American Museum of Natural 

 History once saw a Horned Grebe off a Long Island beach 

 "actually flying under water" while catching small fish. The 

 wings were about one-third spread and used in quick strokes; 

 both feet were used also and struck together except when 

 turning quickly: then only one was used. Mr. Erie L. Brown, 

 Bowdoinham, Maine, says that he has seen Horned Grebes 

 several times using both wings and feet under water at Merry- 

 meeting Bay. The wings were used with quick strokes, and the 

 foot-strokes alternated one after the other. The birds swam 

 faster, he says, with wings and feet than they did with feet 

 alone. Mr. Ralph Lawson, secretary of the Essex County 

 Ornithological Club, Salem, Massachusetts, watched from a high 

 wharf a Horned Grebe in the harbor of Cutler, Maine. The bird 

 was feeding along the bottom, pursuing an irregular course, and 

 using both feet and wings. It seemed to be picking up some- 

 thing from the bottom. Mr. Stanley G. Jewett, Portland, 

 Oregon, says that in March, 1916, at Netarts Bay, Oregon, he 

 saw a Horned Grebe swimming under water with wings about 



