BEWICK'S SWAN. 



487 



recognized by its entirely black bill. It has bred freely in the Zoological 

 Gardens in Regent's Park. 



A second American species, C. americanus, having a veiy similar range, 

 and differing principally from the Trumpeter Swan in being smaller, has 

 possibly greater claims to be regarded as British. In February 1811 

 Macgillivray (Hist. Brit. B. iv. p. 675) obtained one, and in December 

 1879 Mr. Charles A. Parker (Zoologist, 1880, p. Ill) found -five wild 

 Swans in a poulterer's shop in Edinburgh. Macgillivray's example was 

 that of an immature bird, but Parker's were said to be adults, and in both 

 cases the result of dissection was supposed to be in favour of their being 

 examples of the American Swan. Further examination has, however, 

 thrown some doubt on the correctness of the diagnosis. 



HOOPER. 



BEWICK 8 SWAN. 



