486 THE ZOOLOGIST. 
hungry rats with which this wall abounds. We looked till darkness 
ended our search, but never succeeded in finding it. 
RosEaTE Tern.—I believe I recognised one of these birds, 
amongst a flock of Arctic and Lesser Terns, feeding near the 
Lighthouse, one morning in May, 1876. 
Litre Guii.—I saw one feeding with a number a 
other Gulls, chiefly Blackheads and Kittiwakes, on the Liffey 
at Kingsend, on December 6th, 1876. It came quite close to us 
several times, a westerly gale blowing at the time. I neyer saw 
it afterwards, though it remained about for a week, and a friend 
of mine saw it on three different days, and recognised it from 
having once obtained one himself in Scotland. 
BuLackK-HEADED GuLL.—Common all the year round, except 
from June till about the end of August, when the greater number 
retire from this locality, returning when they have nearly lost 
the black head, and leaving when or soon after they get it. 
GreEAT BLACK-BACKED GuULL.—F ormerly much more numerous. 
There are always a few pairs and small flocks of four-or five along 
the coast, but these are nearly all immature birds. In early spring 
I have noticed large flocks occasionally on the North Bull and 
near Malahide, but these do not usually make a long. stay,—a 
change of wind occasionally taking them off, 
Lesser, Buack-BackED Guiu.—I have met with immature 
birds, during winter, but they are not seen in any number until 
spring. . Towards the end of March a few arrive, and in April 
large flocks may be seen al] along the coast. They again diminish 
in numbers’ in May. Ihave come across an odd pair now and 
then in June and July out in Dublin Bay and farther north. They 
appear again, on their return south, in August and September. 
Herring Guru.—Breeds round Howth Head, on Ireland’s 
Eye, and Lambay, and seen at all seasons along the coast. In 
spring'a good many may be found about the North Bull. . 
Gravcous Guit.—During January, 1871, a large fish was’ 
washed up on the north end of the Bull, and I noticed one of 
these Gulls constantly at or about it for a week or ten days, when 
it disappeared. It was very wild, and I and a friend made many 
fruitless attempts to get within shot. 
Common Guiu.—During winter and early spring I have always 
found this bird most numerous, though there are generally a few 
about. 
