378 
APPENDIX. VII. 
ments and observations; I shall therefore ne 
longer defer subscribing myself, 
Dear Sir, 
Your most faithful 
Humble Servant, 
Daines BARRINGTON. 

No. VII. 
OF THE MIGRATION OF BRITISH BIRDS. 
Quam multe glomerantur aves! ubi frigidus annus 
Trans pontum fugat, et terris immitiit apricis. 
- VIRGIL. 
THE migration of birds, is a subject of so cu- 
rious a nature, that every one who attempts to 
write the natural history of animals, ought to. 
look upon it as an essential part of his inquiries, 
and at the same time should endeavour to assign 
the cause why some birds prefer certain places for 
their summer, others for their winter residence. 
To be qualified for this task, it is necessary 
that the inquirer should confine himself to 
one certain tract the whole year; he should be 
diligent in observing the arrival, and the disap- 
pearance of birds; he should commit every ob- 
servation to paper, and compare them with the 
remarks of correspondents, on the same subject, 
