DUTCH AND ENGLISH BIRDS. 2921 
A rare straggler to Holland, has once occurred near 
Rotterdam in 1859 (Zool. Gard. Museum of Rotterdam) 
and a second time in 1874 near Zaandam (Coll. van 
Wickevoort Crommelin). 
Genus Mergus. 
Mergus merganser Linn. 
A winter visitor to Holland. 
A winter visitant to the British Islands, breeding spa- 
ringly in the northern half of Scotland. 
Mergus serrator Linn. 
A winter visitor to Holland and the Br. Islands, breeding 
in Scotland and Ireland. 
(Mergus cucullatus) Linn. 
Mergus albellus Linn. 
A regular winter visitor to Holland. 
Of irregular occurrence in winter in the Brit. Isl. 
Order COLUMBAE. 
Genus Columba. 
Columba palumbus Linn. 
A common resident in Holland and the Brit. Isl. 
Columba oenas Linn. 
A rare local resident, breeding in Utrecht, Gelderland, 
Noord Holland and Noord Brabant. This bird is generally 
considered to be a summer visitant only, I myself observed 
it at ’s Graveland every month of the year. 
Breeds in most parts of the Br. Islands (H. S.). 
(Columba livia) ** Bonnaterre. 
Genus Turtur. 
Turtur communis Selby. 
A summer visitor to Holland, breeding all over the country. 
Notes from the Leyden Museum, Vol. XV. 
