Diet OverlapCommon Diet
Common Habitat
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. ♦ 2Field observations on the feeding habits of Littorina scutulata Gould and L. sitkana Philippi (Gastropoda, Prosobranchia) of southern Vancouver Island (British Columbia, Canada), Domenico Voltolina & Cesare F. Sacchi, Hydrobiologia 193: 147-154, 1990 |