Hello again. Does the mean Plymouth and Columbian rocks are identical apart from colour? Do they share the same traits like egg laying rate, broodiness, weights etc?
a Columbian rock yes but your Original post asked about a Colombian Wyandotte.
a Colombian rock to a Colombian Wyandotte is a blue Honda Accord vs a blue Hyundai Sonata.
a Colombian rock to a barred Plymouth rock is a blue Honda Accord to a silver Honda Accord.