AQUATIC WARBLER. 207 
ADDENDUM. 
AQUATIC WARBLER. 
ACROCEPHALUS AQuaTicus, Gmelin. 
Pl. VIII., fig. 20. 
The egg of this species was lent to me by inadvertence 
for that of the Marsh Warbler, and, although the error 
was soon discovered, it was unfortunately too late to 
prevent its appearance on the plate, which was by that 
time printed off. 
Although no instance of the breeding of the Aquatic 
Warbler in Great Britain has been, to my knowledge, 
recorded, several specimens have been shot in England, 
one, at least, of which was obtained in the summer time. 
Mr. Seebohm says:—‘‘ It is no subject for surprise to 
find this bird occasionally wandering across the English 
Channel, when we know it breeds pretty commonly on 
the opposite coasts of France and Holland.” 
The habits of this species resemble those of the Sedge 
rather than the Reed Warbler, and its egg is not unlike 
some of my varieties of the Sedge bird (cf. Pl. IX., fig. 4). 
