THEIR REPRODUCTION (NESTS) 251 



as our first example. Even among the few 

 British species we find a variety and an adapt- 

 ability that is little less than astonishing. The 

 Rook, the Jay, and the Crow make their large 

 nests in trees ; the Raven not only builds in trees 

 but on cliffs, as also does the Hooded Crow; 

 the Jackdaw and the Chough seek a hole in a 

 tree, cliff, or building ; whilst the Magpie adopts 

 a style of architecture peculiar to itself, and 

 makes a huge nest which is securely roofed in 

 by an almost impenetrable mass of sticks. Then 

 amongst the Titmice we have the cup-shaped 

 structure of moss, wool, feathers, and the like, 

 snugly hidden in a hole of a wall or a tree, and 

 the beautiful globular home of the Long-tailed 

 Tit (made of moss, wool, grass, hair, and feathers), 

 garnished externally with lichens and spiders' 

 webs, built in bushes and small trees. In this 

 latter group we have an instance of a dual type 

 of nest even in the same species ; for the Great 

 Titmouse when nesting in a hole of a tree makes 

 a cup-shaped structure, and when doing so in 

 the deserted home of a Crow or Magpie it con- 

 structs a perfectly globular nest of moss and 

 feathers. Then in our two species of Flycatcher 

 we find that the Spotted species makes a cup- 

 shaped nest of grass, twigs, moss, wool, and 



