4o8 SWALLOWS. Class IL 



" with a night's reft, took their flight in the morn- 

 *'ing"*. This vaft fatigue, proves that their 

 journey muft have been v^ry great, confidering the 

 amazing fwiftnefs of thefe birds : in all probability 

 they had crofled the Atlantic 0Qt2in^ and were return- 

 ing from the fliores of Senegal^ or other parts of 

 Africa ; fo that this account from that moft able 

 and honed feaman, confirms the later information 

 of M. Adanfon. 



Mr. White^ on Michaelmas day 1768, had the 

 good fortune to have ocular proof of what may 

 reafonably be fuppofed an adual migration of fwal- 

 lows. Travelling that morning very early be- 

 tween his houfe and the coaft, at the beginning 

 of his journey he was environed with a thick fog, 

 but on a large wild heath the mift began to break, 

 and difcovered to him numberlefs fwallows, cluf- 

 tered on the {landing bufhes, as if they had rooft- 

 ed there : as foon as the fun burft out, they were 

 inftantly on wing, and with an eafy and placid flight 

 proceeded towards the fea. After this he faw no 

 more flocks, only now and then a ftraggler f . 



* Phil. Tranf. Vol. LI. Part 2. p. 459. 



f In Kalni's Voyage to America^ is a remarkable inftance 

 of the dilbnt flight of fwallows ; for one lighted on the fhip 

 he was in, September 2d. when he had pafTed only over two 

 thirds of the Atlantic ocean. His pafTage was uncommonly 

 quick, being performed from Deal to Philadelphia in lefs than 

 fix weeks ; and when this accident happened, he was four- 

 teen days fail from Capi Hinlopen* 



This 



