So cull all cockerels since they are barred?Blue cuckoo pullet X Black Birchen = will throw all birchen pullets Blue and Black plus all barred male .Dark cuckoo cockerel Black and Blue.
Birchen and silver cuckoo { Black or Blue} give great result in a breeding pen ,because the cuckoo marans is a Birchen based not Uniform E/E like most people think .
cuckoo marans is ER/ER not E/E.
chooks man
How will I get everything back to Birchen/Blue Birchen? Sorry for the dumb questions.