518 Herr E. Hartcrt on the 



Tadorna tadorna (L.). 



Has been shot occasionally near the coast. 



Anas crecca, L. 



Breeds regularly in East Prussia, but in small numbers. 

 It is found on small waters inland. 



Anas querquedula, L. 



Breeds in great numbers on the Haffs, but does not occur 

 in winter. 



Anas strepera, L. 



Not rare as a breeder on some of the lakes of the southern 

 parts. Occurs also on passage. I found clutches in the 

 second half of May, and even before that time. 



Anas penelope, L. 



Common on passage, but breeds in very small numbers 

 only. 



Anas acuta, L. 



Passes through on migration and breeds on some of the 

 lakes. 



Anas boschas, L. 



Very common. A few are seen also in winter. 



Spatula clypeata (L.) . 

 Breeds in small numbers. 



FULIGULA FULIGULA (L.). 



Not rare in winter. 



FULIGULA MARILA (L.). 



In winter, but not very common, and only on the sea-coast. 



FULIGULA CLANGULA (L.). 



Common in winter. Breeds commonly in the southern 

 and eastern parts in hollow trees, mostly high above the 

 ground. 



FULIGULA FERINA (L.) . 



Not rare on passage, and regularly breeds on some of the 

 lakes. Eggs laid in the second half of May. 



