Interspecific aggression by Tundra Swans toward Lesser Snow Geese in the Sagavanirktok River delta, Alaska

Burgess, R. M., and A. A. Stickney.  1994.  Interspecific aggression by Tundra Swans toward Lesser Snow Geese in the Sagavanirktok River delta, Alaska.  Auk 111: 204–207. 

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