Dreamer the only way is to keep the pet quality drake away from the hens for about a month before you collect the eggs you want to hatch. There was a period that I kept two pens, one with my hens and one with my drakes, but I put the drake I wanted with the hens I wanted him with for a while...
OK, I'll give it a try.
KansasKid the gene for silver or brown is sex linked so you will have to adjust your punnet square.
The female only gets one of the pair of alleles which she inherits from the father, so if the father is homozygote (both alleles are the same) the daughter will display...