70 



ELEMENTS or OENITHOLOGT. 



bank, wherein is its foul bed of rejected fish-bones. Very 

 different is the comfortable abode — domed-shaped and formed 

 of moss and dry grass — of the Dipper (Ginclus aquaticus), which 

 also haunts our mountain streams, even passing much of its time 

 under water searching for the small creatures on which it feeds. 



Fig. 72. 



The Great Black Woodpecker {Fictis martins). 



In rapid, rocky rivulets it is to be found in England all the year 

 round. It represents a group of about a dozen species of 

 similar habits found in both worlds, mainly in the Northern 

 Hemisphere. 

 The Dipper, unlike the Kingfisher, does not perch on trees. 



