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Discussion in 'General breed discussions & FAQ' started by Helen in the Desert, Nov 11, 2013.
Are Cuckoo and Barred the same genetic? If not, can someone list the locus involved? Thanks
Cuckoo is caused by the barring gene (B) most often in conjunction with the rapid fathering gene (k+). However, in some breeds with slower feathering (K) & barring gene (B) the name for the variety is named "cuckoo" while not exactly having the blurred appearance traditionally called "cuckoo". The exceedingly neat barring on varieties such as the Barred Plymouth Rock are the result of B, K & it has been suggested columbian (Co) on extended black (E) & silver (S) possibly also with modifiers.