INTRODUCTION, 107 
Sedge Warblers and the Wood Wren are also contained. It 
embraces about two hundred and ninety species. They are all 
dull-coloured Birds inhabiting the Old World, having their head- 
quarters in the countries surrounding the Mediterranean Sea. 
But there are a number of other Birds, also called Warblers, 
Fig. 113. 

The Blackeap (Sylvia atricapilla), 
but distinguished as “ American Warblers” (Mniotiltide), of 
which there are some hundred and thirty-seven kinds. 
The songster whose note is the most familiar to the inhabi- 
tants of these islands is, perhaps, the Thrush (Zurdus musicus), 
and it is the type of a large cosmopolitan family of Birds num- 
bering fully three hundred and forty-four species. Amongst 
