THE BOOK OF MIGRATORY BIRDS I /I 



Towards the end of spring they withdraw northwards, 

 and build their nests, chiefly of coarse grass and herbs, 

 usually close to the edge of some fresh-water loch. They 

 lay two eggs, and the male is said by close observers to 

 take his turn in the task of incubation. Stray couples 

 breed in the Orkneys, Outer Hebrides, and in the north 

 of Ireland. 



