58 



Robin, and the Nightingales (Case T). The true Warblers are 

 nearly all Old World species (Case T) ; they include not only the 

 familiar European White-throated, Garden, Orphean, and Black- 

 capped Warblers and their numerous near allies (genus Sylvia), 

 the great group of Willow-Warblers (genus F/iylloscopus), the 

 Tree-Warblers (genus Hypolais), the Reed-Warblers (genus Acro- 

 cephaliis), but also the Grass-Warblers (genus Lusciniola) and the 

 Superb Warblers of Australia (Case T). 



The family as a whole includes not less than four hundred spe- 

 cies, and comprises a large part of the most familiar and celebrated 

 of the Song-birds, and by general consent has been placed at the 

 head of the whole Class of Birds. 



