WHERE SWALLOWS EOOST. 



239 



test, on account of the fact that the nests I liave had 

 under observation have been cut out and taken away 

 before the female had begun to sit. 



That birds of different species will upon occasion 

 roost together we have proved by taking a Sparrow 

 and a Wren from the same hole in the end of a 

 haystack at night-time. 



FULLY-FLEDGED SWALLOWS SLEEPING IN OLD NEST. 



{I'lwtograiJhed by Magnesium, Flashlight.) 



Swallows sleep on beams in barns where they 

 l)reed, and when molested flutter from one place to 

 another without making any serious attempt to 

 leave the building. 



AYe have examined sheds, however, in wliicli 

 were nests full of large young ones without meet- 

 ing with a single old bird either on them or the 

 surroundino; timbers. I have watched them ffo to 

 roost in Scotch firs and the branches of trees over- 

 hanging ponds ; and their going to rest in flocks 

 amongst the reeds growing on Thames eyots is 



