National award 

 Dr. Aelred I). Greis and Mr. Samuel M. Carney 



of the Migratory Bird Populations Station re- 

 ceived one of the $.500 awards made annually by 

 the American Motors Corporation, New York 

 City, for outstanding contributions to conserva- 

 tion. The award was for development of the wing 

 technique for identifying, aging, and sexing ducks 



killed by hunters. Only one wing of a duck need 

 he contributed by a hunter, using a self-mailing 

 envelope. The method provides information es- 

 sential to an understanding of the population dy- 

 namics of the various important species, and makes 

 possible the use of a larger and better-distributed 

 sample. It is also saving in time and manpower 

 and. therefore, in costs. 



The sea lions on Walrus Island in the Bering Sea, pictured here, and the sea otters of the northern coast, are among 

 the marine mammals under study by Bnreau biologists. (Photo by Karl W. Kenyon) 



