AVES CHARADRIID^ 



319 



Adults in winter, are similar in the disposal of the color areas but the 

 general color above is light ashy grey, the edges of the feathers more or 



Fig. 163. 



Calidris arenaria. Winter plumage. The upper figure is an immature, and the lower figure 

 an adult bird at that season. From birds in the British Museum. Natural size. 



less distinctly hoary white, and absolute dark centers to those of the crown 

 and back. The head is characterised by a broad band of white occupying 



