I have a small flock of a dozen chickens 6 barred rock and 6 rir my rooster however is a rir. egg production is very high averaging 8 - 10 eggs a day thru a maine winter. i would liketo try hatching this spring. this may be a silly question but whats going to happen with the crossed ones? will i be able to tell them apart? will theyre egg production still be high? and what about for meat?