age ??

[Dingleberry]

When are Rouens concidered full grown, there about 9 weeks old and huge. Sex????

THe difference Is the stripe on the eye.

 

[Oregon Blues]

There are ducks called Marans?

 

[JulieNKC]

Marans? Are you sure they aren't Rouens? Especially if they are huge...not sure when they considered full grown.

 

[MissusDee]

Most ducks seem to be fully mature around 6 months give or take.