BRITISH BIRDS. 
THE MISTLE-THRUSH. 
Turpbus viscfvorus, Linnzus. 
Owing perhaps to the increase of plantations during the present 
century, the Mistle-Thrush, the largest resident species of the genus, 
has extended its breeding-range northward to Caithness, Suther- 
land and West Ross, as well as to some of the Hebrides; but to 
the Orkneys it is chiefly a wanderer, very rarely breeding, and has 
seldom been recorded from the Shetlands. Until about the year 
1800 it was unknown in Ireland, where it is now sedentary and 
increasing ; while in England and Wales it is of general distri- 
bution, though commoner in the wooded districts. Emigration 
takes place from the colder portions of our islands in autumn and 
winter, when, on the other hand, large flocks arrive from the 
Continent. 
This species breeds from Bodo in Norway southward, throughout 
suitable portions of temperate Europe to the extremity of the 
B 
