I have 2 ducks that were hatched 5/6. I have a male crested blue swedish & a female black cayuga, if that matters. I got chicks hatched the same day & all of their wing feathers have completely grown in. The ducks have no feathers, or even signs of feathers. They are huge compared to the chicks, so they are growing.. just no feathers yet. Does anyone know around what age ducks start getting feathers?