I am considering a long term project involving selective breeding of dominique chickens. The goal is to generate a strain with the following characteristics that differ from the pure dominiques I have now: lighter build, harder feathers, physical and mental capability for flight, darker eggs, improved cold tolerance and ability to forage effectively to supplement a whole grain feed mix (no vitamins and suboptimal energy) with plants (i.e. clover) to meet vitamin and balance of energy requirements. I will be incorporating old english games (as male only) and California grey and cuckoo marans. The latter two breeds in particular are subject to change. They are intended to improve egg production (size and number) while the latter will incorporate genes for darker eggs. Has anyone crossed dominiques with either California greys or cuckoo marans? I am looking for a little insight about what to expect.