1956 



Geroudet, P. 1956. Notes sur une Macreuse noire. Nos Oiseaux 23: 282. [In 

 French. ] 



Hubbs, C. L. 1956. Off-season, southern occurrence of the Black Scoter on 

 the Pacific coast. Condor 58: 448-449. 



1955 



Hubbs, C. L. 1955. Black Scoters reported from Baja California. Condor 57: 

 121-122. 



Kist, J. and J. Swaab. 1955. Eerste waarneming de Amerikaanse Zwarte Zeeeend , 

 Melanitta nigra americana (Swainson). Ardea 43: 132-134. [In Dutch.] 



Tomkins, I. R. 1955. Additional Georgia records of the American Scoter. 

 Oriole 20: 30-31. 



Verheyen, R. 1955. Note sur la variabilite des characteres osteologiques 



chez la Macreuse noire, Melanitta nigra (L.). Bull. Instit. R. Sci. Nat. 

 Belgique 31 No. 21. 19 pp. [In French.] 



1953 



Bannerman, D. and J. Bannerman. 1953. Common Scoters roosting ashore. Scott. 

 Nat. 65: 54. 



1952 



Schmidt, G. A. J. 1952. Zur Balz von Trauer- und Eistente. Vogelwelt 73: 

 123-125. [In German.] 



1951 



Bettman, H. and M. Meijering. 1951. Trauerentenzug vor den Ostfriesischen 

 Inseln. Ornithol. Mitt. 3: 278. [In German.] 



Lunau, C. 1951. Trauerentenzug uber Haffkrug. Die Heimat 58: 227-230. [In 

 German. ] 



1950 



Cawkell, E. M. 1950. Sex ratio of Common Scoter off part of the coast of 

 S.E. England. Brit. Birds 42: 304-305. 



Salomonsen, F. 1950. Oversorarende Sortaender ( Melanitta nigra (L.)) ved 

 Jyllands vestkyst . Dan. Ornithol. Foren. Tidsskr. 44: 171-172. 



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