No, not with the fawn and white. Since this is already a choc variant. Those females will give the chocolate gene no matter what, and a 50% chance of blue, so you'd get both males and females in chocolate as well as in fawn.
If your black male is split to chocolate, even more colours can ensue.
Chocolate being sex linked will give you chocilate females when paired with black.
As for the fawn and white, I *think* that's a combination of both the chocolate and the blue gene. So, paired with chocolate you'd get both choc males and females, as well as fawn. Combined with black, you...
It's up to you. I personally prefer having moms raising the ducklings, to save on all the cleaning, but I worry more too about something happening to them!
I ignore behaviour like that and just stick my hand in anyways! :lau My chocolate quacker is meaner than my scovies.
Since (from my understanding) Fawn is a mix of Blue and Chocolate, a male bred to a non-chocolate female should give you all chocolate females.
As for the Magpie, yes, that's poorly marked.