25 o SWALLOWS. Oafs It 



lows do not remove very far from their fummer ha- 

 bitation, but winter in the hollows of rocks, and du- 

 ring that time lofe their feathers. The former part of 

 of their opinion has been adopted by feveral ingenious 

 men; and of late, feveral proofs have been brought 

 of ibme fpecies, at left, having been difcovered in a 

 torpid flate. Mr. Coltinfon * favored us with the 

 evidence of three gentlemen, eye-witneffes to num- 

 bers of /and martins being drawn out of a cliff on 

 the Rhine, in the month of March 1762 f. And the 

 honorable Mr. Dames Barrittgton, this year, commu- 

 nicated to us the following fact, on the authority of 

 the late lord Belhaven, that numbers of fw allows 

 have been found in old dry walls, and in fandhills- 

 near his lordfhip's feat in Eajt Lothian ; not once only, 

 but from year to year ; and that when they were ex- 

 pofed to the warmth of a fire, they revived. We 

 have alfo heard of the fame annual difcoveries near 

 Morpeth in Northumberland \ but cannot fpeak of them 

 with the fame affurance as the two former : neither 

 in the two laft inflances are we certain of the particu- 

 lar fpecies J. 



The above, are circum fiances we cannot but afTent 

 to, though feemingly contradictory to the common 

 courfe of nature in regard to other birds. We mull, 

 therefore, divide our belief relating to thefe two fo 

 different opinions, and conclude, that one part of 

 the fwallow tribe migrate, and that others have their 



* By letter, dated June 14, 1764. 

 f Phil, tranf. vol. 53. p. ioi. art. 24, 



\ Klein gives an inftance Qijhuifit being found in a torpid flate. 

 Hi/., av. 204, 



winter 



