THE EIDER DUCK. 



125 



about a pound and a half to make a coverlet. The eggs 

 vary in number from five to eight, and are greyish green 

 in colour. The bird generally begins to lay about the 

 middle of May. Its food consists chiefly of crustaceans 

 and shell-fish. 



' c.^^Jh.^^i^Aw-r ' --'-:<. 



