63 

 MOTACILLA TROCHILUS. 



Syst. Nat. 338. 



GREEN OR YELLOW WREN. 



PLATE LXIII. 





X he bill is horn colour, with a black tip ; the eyes 

 black; the inside of his mouth yellow. Over the eyes 

 is a yellow line, the head and back are green, with an 

 olive shade; the rump more yellow. The wings and tail, 

 dusky olive, the feathers of both edged with a paler ol- 

 ive; the throat, breast, and belly, are a bright yellow, in 

 the male; paler in the female, her belly being of a 

 dusky white. The covert feathers beneath the tail, in 

 both male and female, are of a pale buff colour. On 

 the angle of the wing is a spot of a beautiful yellow, in 

 both sexes. 



The song of this little bird is loud and shrill, and his 

 notes sprightly and pleasant; he perches on the branch 

 of some tall tree; and, with mouth wide open, wings 

 half raised and shaking, and bill erect, he makes the 

 woods re-echo. The cry of this bird, when disturb- 

 ed, or in distress, is not unlike that of the Grasshopper 

 Warbler, re, re, re, often repeated; and is accompa- 

 nied by a restless motion, continually hopping from 

 spray to spray, but will not be driven far from the 

 place of his residence. 



The fly figured on this plate is the Sphex Perturhator. 

 It frequents dry banks; and burrows in the sand, to 

 make a lodging for its young. It is an insect of prey, 

 feeding on very small flies, caterpillars, Slc. 



