Diet Overlap

Cygnus cygnus (Whooper Swan)
Calidris minutilla (Least Sandpiper)

Common Diet

Mytilus edulis (Blue mussel)

Common Habitat

Aleutian Islands Biosphere Reserve
North America

Attributes / relations provided by
1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.