yio 



A P P E N D I X. 



berries-, as on thefe accidents many curious re- 

 marks may be founded. He mould cultivate an 

 acquaintance with the gentlemen of the navy, and 

 other fea-faring people •, he mould confult their 

 journals, to difcover what birds light on their (hips, 

 at what feaibns, in what latitudes, and in what 

 weather, and from what points •, and thus trace 

 them in their very courfe. 



A comparative view of the writings of thofe who 

 mould embrace this part of natural hiftory, would 

 throw great light on the fubject. But it is to be 

 lamented, that none, except two northern natu- 

 ralifts, Mr. Klein and Mr. Ekmarck, have profef- 

 fedly treated on this point. The ibuthern parts 

 of Europe, which may be fnppofed to receive, du- 

 ring winter, many of our land birds, have as yet 

 produced nofaunift to afliit the inquiries of the na- 

 turalifts, which muft account for the imperfect 

 knowledge we have of the retreat of many of our 

 birds. 



We muft not omit, however, our acknowledge* 

 ments to two eminent pens that have treated this 

 fubje& as far as it related to rural ceconomy - 9 

 and, in fuch a manner, as does honour to their re- 

 fpeclive countries; we mean Mr. Alex. Mai. Berger 

 and Mr. Siillingfleet : whom we mould not men- 

 tion a fecond time*, but to confefs the aid we 

 here receive from their faithful attention to the fub- 

 jedt in queftion. 



* Vuie Preface. 



We 



