Hi Krys,
Ducking as a hobby term rather than Duckwing as a genetic term. As the Golden Cuckoos could be based on Birchen, Duckwing , or Wheaten in Marans I would have been more correct is saying 'unbarred red/gold' pullets.
David
BC X Cuckoo = Cuckoo males,Black pullets
BC X Blue = 50% each Black & Blue
BC X Splash = 100% Blue
BC X Golden Cuckoo = Golden Cuckoo males,BC pullets
Heteozygous Golden Cuckoo X Golden Cuckoo = 25% each heterozygous & homozygous Golden Cuckoo males, Golden Cuckoo pullets & Red/gold Duckwing...