another runner duck color question

[LaGeniaLoca]

I'm trying to decide what colors I want to get in runner ducks. I would like to have a few different colors to start with and then see what I can hatch from that. If I was to put a chocolate drake over fawn & white and blue hens, what kind of colors would I see? Will this get me a whole rainbow of color, or will it produce only main colors? I was going to order them from Meyers, so I won't know what background they will have.

Thanks! ~ Stacy