148 WOOD WARBLER. 



brown on the under tail coverts ; the centre of the 

 belly white ; the tail is cuneated, having the outer 

 feather (tipped with grayish white) about half an 

 inch shorter, the others gently graduating ; the 

 legs and feet are sienna yellow. The female and 

 young birds have the colours less distinct, and 

 have the chin marked with triangular spots of 

 reddish white, running in lines. These are said 

 to disappear with age, and this part in the full 

 breeding state to become uniform in its tint. 



Our next British genus is that of the true 

 Warblers, all arboreal in their habits, exhibiting 

 great activity, insectivorous, or nearly so, and 

 regularly migratory. The nest is built on the 

 ground, having an entrance on one side. 



SYLVIA, Lath. Generic characters. Bill 

 slender, rather dilated at the base, and 

 very weakly bristled ; wings moderate, the 

 third and fourth quill longest, the first very 

 short ; tail sub-furcate ; feet slender, hind 

 toe and claw proportionally strong. S. 

 trochilus, Selby, &c. 



Note. Form, slender, arboreal, breed on the 

 ground. 



THE WOOD WARBLER, SYLVIA SIBILATRIX, 

 Bechst. Wood Wren, Yellow Willow Wren, 

 Wood Warbler of British authors. The three 

 species, which constitute the British portion of 



