PREFACE. 



tM S H E Author of the following Iheets intends, by the pub- 

 "*- lication of them, to fulfil his pronnifes to the public of 

 clofins; therewith his General Synopsis of Birds. 



o 



In order to form this fupplemental Volume, every fpecies in 

 the former ones has been revifed j and to fuch of them as 

 wanted correflion, or where any new remark feemed neceflary to 

 be added, it has been done : after which, thofe defcribed as new 

 follow, at the end of each Genus j making in the whole work not 

 fewer than 3000 birds ; a number never imagined, by former 

 writers in ornithology, to exift in nature. 



It has been by fome thought, that fuch an undertaking as the 

 prefent might have been rendered more complete, if fhort generic 

 and fpecific defcriptions had been added; but as fuch, if joined to 

 the work, could not, with propriety, have been placed any where 

 except at the head of the defcriptions at large, it would nor, in the 

 author's opinion, have elucidated the fubjed in the fame propor- 



a tion 



