out-houses, and sheds, fixing it upon the cross beams, and 

 against those that support the roof, occasionally also in the 

 shaft of a deserted coal-pit. I have seen the nest of one 

 against a door which was daily opened, many times, and yet 

 the poor bird continued to sit till the nest was shaken down 

 and destroyed, and even built a second time and shared the same 

 fate. White mentions a curious instance of one that made its 

 nest on the wings and body of an Owl that happened by acci- 

 dent to hang dead from the rafter of a barn, and afterwards 

 in a large conch shell which was put in the same place ; the 

 Owl being taken down and placed in Sir Ashton Lever's mu- 

 seum. The nest is similar to that of the House Martin, 

 with the exception of its being open at the top ; it is made 

 of the same materials, mud and clay, rendered more adhesive 

 by mixing with it small pieces of straw ; it is lined with dry 

 grass and feathers, and contains four or five eggs, varying as 

 shown in the annexed Plate, the first figure being the most 

 common. 



