92 
The Irish Naturalist. 
June, 
With the exception of the Tern, examples of each species 
were sent to me, and without exception they were in most 
excellent condition, with an abundance of fatty tissue 
present, a sure sign that they were affecting a regular migra- 
tion. And probably the Tree-Pipit, whose fragmentary 
remains I have now written about, was, when it collided 
with the lantern, in like fat condition. Obesity is the rule 
with migrating birds ; only storm-driven waifs, those which 
have been prevented from obtaining food through being 
crippled, and those suffering from definite disease, show 
signs of emaciation on rock-stations. It may be well here 
to mention the meteorological register for the night on 
which the above migrants visited the lantern : Weather 
• calm ; wind blowing from the S.S.E. with the force of a 
gentle breeze according to Beaufort's scale ; sky clear over- 
head, with detached open clouds ; hazy on the horizon. 
The question of high winds driving the pipits or other birds 
out of their course that night can be put out of court, while 
the absence of dense fog allowed them to make such Jiead- 
way as they are wont to do when travelling by night to 
their intended destination. 
Let me conclude by saying that all records of the occur- 
rence of the Tree-Pipit — a species but recently discovered 
in Ireland, and now placed on the Irish List — will, for many 
seasons to come, be eagerly sought for, in order to enable 
ornithologists to form some idea of the status of the bird as 
far as Ireland is concerned. 
Measur?:ments. 
The following are the measurements which I made on 
the fragmentary remains of the Tree-Pipit above described : 
Right wing, 8.5 cm. 
Left wing, 8.42 cm. 
Beak, i.i cm. 
Feet, 2 cm. (Both same in length). 
Hind-toe, 7.5 m.m. (Both same in length), 
N.B. — Plumage of the wings, bright and fresh. 
The University, Sheffield. 
