303 A TOl'R ROU>v 7 D NORTH WALES. 



habitable, and formed part of Caernarvon- 

 fhire, they had a bridge acrofs the channel, 

 by which they had a communication with 

 that country. And they yet pretend to 

 mew the remains of an antient caufeway, 

 which, they fay, was made from this ifland 

 to the foot of Penmaen bach, near Conwy, 

 for the convenience of perfons who ufed to 

 vifit this place, held in former times in 

 moft fuperftitious veneration.* 



Prieftholme, from the beginning of April 

 to the beginning of Auguft, is inhabited by 

 immenfe numbers of different kinds of fea 

 fowl, but in particular by that rare fpecies, 

 called Puffin Auk, the Alca Arftica of 

 Linnasus. Thefe are birds of paffage, and 

 annually refort hither to breed, and one 

 part of the ifland appears at times to be 

 almoft covered with them. They form 

 burrows in the ground, and lay in them 

 one white egg, which is generally hatched 

 in the beginning of July. They are fo 



* Gough's Camden, III. 697. 



affectionate 



