i understand some of the coloring genics,but when it comes to certain coloring info..i am clueless. i havent read much on it. but just from backyard breeding,and alot of barnyard going ons with flocks all running together i see so many ..mutts..that are so beautiful. until i joined this site,after more then 20 yrs of raising chickens, i am now learning what i call mutts are designer birds..or project birds..lol... i have some O.E. from way back still on farm,which have cross bred,mostly with seabrites..second generation is super small in size,almost smaller then my class A & B seramas, but longer body & not the V form,, but height wise are almost smaller. for some reason this cross is sex linked colored at hatching. my OE & cross breds are actually quite old now..but still getting eggs from a few. i love the smaller size chickens,, but mainly raise alot of different colored cochins and large breed hens. love the variety,colors & looks.