1. Food habits of Canvasbacks, Redheads, and Lesser Scaup in Manitoba;Bartonek;Condor,1969
2. Weather-dependent foraging of Great Blue Herons (Ardea herodias);Bovino;Auk,1979
3. Effect of human disturbance on birds at an East Coast Estuary;Burger;Biology Conservation,1981
4. Jamaica Bay Studies. II. Effect of tidal, temporal and weather related variables on distribution of Ibises, Egrets and Herons on a coastal estuary;Burger;Acta Oecol.,1983