TURN-STONE 



35 



hind toe standing inwards, and all of them edged with a thiek 

 warty membrane. The male and female are alike variable; and 

 when in perfect plumage nearly resemble each other. 



Bewickj in his History of British Birds, has figured and de- 

 scribed what he considers to be two species of Turn-stone ; one of 

 which, he says, is chiefly confined to the southern, and the other 

 to the northern parts of Great Britain. The difference, however, 

 between these two appears to be no greater than commonly occurs 

 among individuals of the same flock, and evidently of the same 

 species, in this country. As several years probably elapse before 

 these birds arrive at their complete state of plumage, many varie* 

 ties must necessarily appear, according to the different ages of the 

 individuals. 



