ON THE MIGRATION OF BIRDS. 3S) 



be led to the choice of materials proper to be in- 

 serted in that useful companion, the Naturalisfs 

 Journal* 



From the observations of our friends, from ^ 



those made by ourselves, and from the lights 

 afforded us by preceding writers, we shall, in 

 the brief relation we can pretend to give, pro- : 

 ceed in a generical order, and as far as possible, 

 trace each species of bird to its retreat. 



A few words will explain the cause of their 

 disappearance in these northern regions; a de- 

 fect of food at certain seasons, or the want of a 

 secure asylum from the persecution of man 

 during the time of courtship, incubation and 

 nutrition. ^r ? ; ■'•■■: in 



Eagles, and all the ignoble species of this genus Falcoxs. 

 breed in Great Britain; of the proper Falcons^ 

 we only know that which is called the Pere- 

 grine, which builds its nest annually in the rocks 

 oi Llandudno, Caernar^oonshire ; and the Gentil, 

 and the Go^/i^re' A", which breed in ASto^/rtWfi?. 



We are assured that every species breeds in Owls, 

 England, except the little Oxvl, and shoi^t eared 

 Oxvl. The last breeds in Scotland, and the Ork- 

 ney isles, but migrates into England at the same 

 season as the Woodcocks do. Hawks and owls 



* Printed for W. Sanhy, Fleet-Street, London, 1767. Price 

 One Shilling and Six-pence. . *i ^. . !; 



