206 STUDIES IN BIRD-MIGRATION 



Among the winter visitors to the British Isles per- 

 forming migrations similar to those of the Fieldfare (due 

 allowance being made for the variation in the dates of 

 their comings and goings, which in most cases are not 

 material) are : the ^' Redwing, Brambling, * Mealy 

 Redpoll, Grey Plover, ^^Turnstone, Great Snipe, Jack 

 Snipe, *Knot, '^Sanderling, Bar-tailed Godwit, and a 

 number of aquatic species (Ducks, Geese, Grebes). 

 Those marked thus ''^" also come to us from Iceland, 

 as well as from the north-east. 



Many individuals of species which are resident in 

 the British Isles, such as the Song-Thrush, Blackbird, 

 Redbreast, Hedge-Accentor, Chaffinch, Siskin, Short- 

 eared Owl, Merlin, Water-Rail, Golden Plover, Wood- 

 cock, Common Snipe, etc., are summer visitors to 

 northern countries, and perform identical migrations as 

 winter visitors to, and birds of passage on our shores. 



