APPENDIX. 459 



case referred to was as follows. — " A female hybrid Polish swan (bred 

 between this species and the mute swan) paired with a mute swan at 

 the garden, Phoenix Park, and during two seasons had eggs, on which 

 she sat, but no young were produced. She may have been robbed of 

 the eggs before the proper time for incubation, as the nest was found 

 empty ;" — it is not stated whether in one or both seasons. 



Two adult hybrids between the mute and Polish swan, of which the 

 bird just noticed was one, came under my observation in March 1847, 

 in the garden already mentioned. The bill and fleshy excrescence at 

 its upper base were perfectly similar in colour to the same parts in the 

 mute swan, from which the birds, on the whole, differed only in being- 

 smaller, and having the legs and feet of a dirty greenish flesh-colour, 

 instead of black. 



Canada Goose {A. Canadensis), male, and Common Tame Goose {A. 

 ferns). May House (island of Islay), Scotland, January 20, 1849, — 

 A male of the former, bred with a tame goose here, and I saw the 

 well-marked progeny nearly as large as the male parent, with similar 

 markings, but in much fainter and less decided colours ; the mark on 

 the cheek, instead of white, being " whitey-brown," &c. 



Canada Goose and Bernacle {A. bernicla). Islay House, January 20, 

 1849. — I saw a couple of very handsome and peculiar-looking birds 

 here to day, which were sent from the collection at Knowsley, the 

 Earl of Derby's ; and were said to have been produced between these 

 species. Their parentage being partially from the Canada goose, was 

 at once evident, as they had its cheek mark, but of a " whitey-brown " 

 hue : — they were pure white round the base of the bill. Plumage of 

 the body generally resembled that of the Canada goose. Their legs 

 were reddish-yellow, and one bird had them much lighter in colour 

 than the other. The bills were very small and bernacle-like. 



Sandwich Island Goose {Bernicla Sandvicensis, Vigors), male, and 

 Tame Goose. Islay House, January 20, 1849. — Sandwich Island 

 geese, of which I saw a pair, were brought here some years ago. The 

 gander deserted his proper partner and " took up " with a common 

 tame goose, in the neighbouring village of Bridgend. Two young- 

 were produced the first year and seven the second. The goose was 

 unfortunately killed before the third year. The place chosen for the 

 nest was on the ground, in the churchyard, beneath the shelter of a 

 grave-stone which inclined much from the perpendicular. Here the 



