Figure 2. Example of typical mallard movements between frequently used sites on southeast Öland, Sweden, October – December 2010.

A (no. 1463): Orange ovals  =  coastal meadows; yellow ovals  =  maize fields; red ovals  =  flooded areas; blue ovals  =  coastal day-roosts (the upper is a sheltered bay, the lower is open water); green ovals  =  coastal reefs used as day-roosts; grey circle  =  duck trap location. B (no. 1426): Yellow oval (1)  =  maize field visited during dawn and dusk; red ovals (2)  =  various small (flooded) wetlands on alvar steppe (the upper one reaching into a maize field), visited at night; green oval (3)  =  coastal reef used as day-roost. C (no. 1440): Yellow oval (1)  =  two maize fields frequently visited, mostly during dawn and dusk; red oval (2)  =  flooded area (stream) visited most nights; light purple oval (3)  =  flooded pasture visited during two consecutive nights (probably for feeding); blue oval (4)  =  most frequented day-roost.