1920 



Mayhoff, H. 1920. Von den Brutvogeln des Moritzburger Teichgebietes. Verh. 

 Ornithol. Ges Bayern 13: 352-359. 



I' M 8 



Mayhoff, H. 1918. Zura Schwingengerausch der Schellente. Verh. Ornithol. Ges 

 Bayern 13: 351-359. 



1911 



Brewster, W. 1911. Courtship of the American Goldeneye or Whistler ( Clangula 

 clangula americana ). Condor 13: 22-30. 



1910 



Townsend, C. W. 1910. The courtship of the Goldeneye and Eider Duck. Auk 27: 

 177-181. 



1900 



Brewster, W. 1900. Notes on the breeding habits of the American golden-eyed 

 duck or whistler. Auk 17: 207-216. 



405 



