The colour is independent of the gender in Black Swedish ducks! Both, duck and drake are just black - more or less.Thanks, with my luck it is probably a drake. The Drake father of it has a green bill with black spots on it and so do my other drake boys so unless it changes again after this 4 and a half week old period it is a boy I would guess. I want to keep it as it hatched out here so it will be in the bachelor pad next year with the Mafia boys, lol.
Do you have just one duckling? - I can identify possible drake candidates at an age of about two weeks by their bill. Drakelings have a more wide, spoon like bill, whereas the ducklings bills are more slim and a bit pointy. Worked very well in the past for the 'lings within one clutch.