GREEN M'OODrECKER. 



141 



third, fourth, fifth, and sixth, nearly equal, but the fourth the 

 longest in the wing. 



Adult females have less red upon the head, and no red on 

 the black mustache. 



In young birds that have recently quitted the nest, the 

 scarlet colour on the top of the head is mixed with yellow 

 and greyish black, the feathers passing by a change of colour 

 from greyish white to yellow, and afterwards to scarlet ; on 

 the mustache of the young male the same changes may be 

 observed ; on the back and wings the green feathers are 

 tipped with yellow : all the under surface of the neck and 

 body dull greyish white tinged with ash green, streaked 

 longitudinally on the neck, and transversely on the breast 

 and belly, with greyish black. The green colour on the 

 under surface of the body increases with age. 



The vignette below represents the breast-bone of the 

 Green Woodpecker, rather larger than the natural size ; the 

 power of flight may be estimated by comparing this bone 

 with that of a Falcon, vol. i. p. 106, and that of an Owl, at 

 p. 130, or with that of the Jackdaw, in the present volume, 

 p. 82, between which bird and the Green Woodpecker, there 

 is no great difference in size. 



