ohh then i live in the usa similar ducks are in both areas but also i think some different ones you miight want to go to where am i ? Where are u threads and see if anybody near your area knows what kind of duck it is.
looks like a really dark wigeon just from looking at the head part
but also it looks like a diving type duck ( so not related to mallard and doesnt dabbel as much as it dives for food )