YELLOW WARBLER. 743 



tinguished from the male, except in being rather 

 paler. 



This species greatly resembles the Pettychap 

 Warbler, from which it may be readily known by 

 its' superior size : it also approaches the Wood 

 Warbler, which is known by its white belly and 

 tail-coverts : it is very abundant in some places, 

 affecting wooded and enclosed situations, where 

 willows abound : it arrives here early in April, 

 and soon commences its song, which is simple, 

 and similar to the words twit, twit, and is uttered 

 while running up and down the branches of trees 

 in search of insects : in the beginning of May it 

 makes an oval nest with a small opening at the 

 top, composed of moss and dried grass, lined with 

 feathers, and placed in the hollow of a ditch or 

 low bush : the eggs are six or seven in number, 

 white, spotted towards the larger end with fer- 

 ruginous ; some are sprinkled all over with that 

 colour : it disappears in the autumn, and is abun- 

 dant in many parts of Europe as well as England, 



