46 



Linnaeus asserts, that chimney swallows and 

 martins immerse themselves in the water in winter; 

 but supposes that swifts lay concealed in holes in 

 church towers, and other secure places*. 



Pontoppidan gives it as his belief, that swallows 

 spent the winter in the water; and asserts, that 

 they are frequently taken out of that element in 

 large masses, by fishermen, in Norway and other 

 northern countries^ . 



Daines Barrington supposed that the chimney 

 swallow remained during winter immersed in water; 

 but that the martin lay hid in cavities of rocks, 

 old towers, and other secluded retreats : in support 

 of which opinion he adduces a great number of 

 factsj. 



Bewick expresses himself decidedly in favour of 

 migration. After having made a few remarks on 

 the occasional torpidity of these birds, he adds : 

 " On the other hand, that actual migrations of the 

 swallow tribe do take place, has been fully proved 



* Hybernat in templorum foraminibus. 



f Pontop. Hist. Norway. 



I Barrington's Misccll, p. 255, and sequel. 



