366 THE BIRDS OF THE BRITISH ISLES. 



Bimaculated Duck, Querquedula bimacidata (K. and B.), is a 

 hybrid. Two American swans have been included, but in 

 both cases identification and origin may be erroneous. The 

 Whisthng Swan, Cygiius columbiaims Ord, was included by 

 Macgillivray on the strength of an example bought in an 

 Edinburgh poulterer's, and the Trumpeter-Swan, C, buccinator 

 Rich., was added because Newton considered that a young 

 bird, shot in Suffolk, was referable to this species. 



The Ring-necked Duck, Nyroca collaris (Don.), was described 

 by Donovan from a supposed Lincolnshire specimen obtained 

 in Leadenhall Market. The B.O.U. Committee include it, 

 considering that at the beginning of the nineteenth century it 

 must have been a genuine wild bird, but I agree with the 

 editors of the " Hand List " that the evidence is insufficient. 

 The Lesser Scaup, N. affiuis (Eyton), another " market " record, 

 is rejected by both, and as a mistake was made about one 

 example of Barrow's Goldeneye, Glaucion islanicum (Gmel.), 

 reported Shetland occurrences are also doubted, although the 

 bird nests in Iceland. 



The Little Green Heron, Butorides virescens (Linn.), killed 

 in Cornwall in October, 1889, (not April, 1890, as stated in the 

 B.O.U. list), is a possible straggler, but the evidence is not 

 sufficient to warrant inclusion. The inclusion of Wilson's 

 Snipe, Gallinago delicata Ord, is founded on an example shot 

 in Buckingham, but the identification is doubtful, as are those 

 of the Rock-Ptarmigan, Lagoptis rupesiris (Gmelin), said to 

 have been shot on two occasions in Scotland. The supposed 

 occurrence of the Swift Tern, Sterna bergii Licht., was worse 

 than an error, and though Scopoli's Sooty Tern, S. ancEthetus 

 Scop., was genuine, it is not certain that the specimen was 

 really obtained in the Thames. 



Ussher doubted the two examples of the Noddy Tern, Anous 

 stolidus (Linn.), which were recorded for Ireland, and Oldham 

 and I were not satisfied with the evidence in favour of the 



