1. Saltmarsh ecology;Adam,1990
2. Habitat selection and diet composition of Greylag Geese Anser anser and Barnacle Geese Branta leucopsis during fall and spring staging in relation to management in the tidal marshes of the Dollard;Aerts;Z.Ö.N.,1996
3. Some aspects of the foraging ecology of a wintering Greylag Goose Anser anser population;Amat;Bird Study,1986
4. Numerical trends, habitat use, and activity of Greylag Geese wintering in southwestern Spain;Amat;Wildfowl,1986
5. Bewick's Swans Cygnus columbianus bewickii utilising the changing resource of Pomategeton pectinatus during autumn in the Netherlands;Beekman;Wildfowl Suppl.,1991