ANATIDjE. 203 



when exposed in different lights ; under tail coverts, 

 white ; legs and toes, brownish yellow. The sex 

 unfortunately was not determined when the bird was 

 dissected, the man who stuffed it considering this 

 unimportant. 



Canada Goose {Anser Canadensis). Canada Geese 

 have been so frequently killed in this country without 

 exhibiting any signs of having escaped from confine- 

 ment, that the species seems fully entitled to a place 

 in the list of British Birds. Its occurrence in the 

 inland counties, as may be supposed, is far less fre- 

 quent than in those counties which possess a sea-coast, 

 and in Buckinghamshire and Berkshire accordingly it is 

 an extremely rare visitant. A single instance only of 

 its appearance has come under my notice. In this 

 case a solitary individual was shot on the river near 

 Windsor in the summer of 1867, and was taken to 

 one of the local birdstuffers for preservation. The 

 unusual time of year at which the bird was obtained 

 would lead to the supposition that it must have 

 escaped from some park or ornamental water, but 

 it bore not the slightest trace of having ever been 

 in confinement. 



Polish Swan {Cygmis immutabilis). This bird 

 was first distinguished as a separate species by the 

 late Mr. Yarrell, who pointed out its distinctive 

 characters in the * Proceedings of the Zoological 

 Society of London' for 1838, p. 19. 



It is extremely rare in England, and I am glad 



