NATATORES. 246 



which have come under my notice were in the winter 

 plumage. I have noted the species as occurring at 

 Hampstead, Hendon, Elstree, and Kingsbury. On 

 the 11th February, 1863, Mr. Henry Hussey ob- 

 served a Little Grebe on the Serpentine in winter 

 plumage. He has also, on one occasion, seen this 

 bird on the Round Pond in Kensington Gardens. 

 He says : " It kept well out in the middle of the 

 pond, but, by means of a glass, I could distinguish 

 its size, shape, and action, and satisfy myself that it 

 was not a j'oung duck, of which, indeed, there was 

 not one in the pond. It seems to me very extra- 

 ordinary that a bird whose powers of flight are sup- 

 posed to be very small, should make its appearance 

 in a pond without an atom of cover in or near it, and 

 surrounded by many miles of brick and mortar." 



The activity displayed by the Little Grebe when 

 in pursuit of fish, its usual food, may be witnessed 

 by all who will pa}^ a visit to the Regent's Park 

 Zoological Gardens, where several are at present in 

 excellent health. 



Blackthroated DiYERy Colymhiis arcticus. Rarely 

 found inland, except during severe weather. So far 

 as I am aware, but one example has occurred in 

 Middlesex. This was a young male, which was shot 

 by Mr. Bond in the winter of 1843, at Kingsbury 

 Reservoir. 



Redthroated Diver, Colymbus septentrionalls. 

 Of more frequent occurrence than the last-named. 



Y a 



