Here is an update on my ducklings. These black ones are 6 weeks old now. Their parents are both black and have very good bibs and 5 white flight feathers on each wing. It is interesting to see that this neither of these things are necessarily inherited.
This is a boy. He obviously has a blotchy bib and no white flight feathers.
This is a duck. She is pretty nice and I think I will keep her.
These are the blue ducklings I put up earlier in this thread. They are 4 weeks old now. I've labelled them with the same numbers so you can see how they have come along. The father is silver and the mother is black. The father has good type but a blotchy bib and no white flight feathers. The mother has 5 white flights on each wing and has a reasonable bib.
Duckling 1. Small bib and no white flights. This one originally had white eye marks but they are reducing.
Duckling 2. Somewhat messy bib that extends more to the right than the left side. Has white flights but may have uneven numbers on each wing.
It's the one on the right in this pic.
Duckling 3. Messy bib and no white flights.
Duckling 4. Messy bib and perhaps one white flight on each wing (or might be a white flight on one wing and a white covert on the other wing)
So, amongst the blues I don't think there are any keepers, which is a shame. But with this breed you have to hatch lots to get a good one. I will breed more from the silver drake and will see how his offspring turn out - hopefully he is capable of siring something that turns out well. Even though he has poor markings I want to try breeding from his as his type is so good and he has absolutely no white on his face/head (hard to get). The blue ducklings are pretty good on that front - not much white around the bill area and none on the upper neck. Just have to get bibs and wing tips right!!