That is impossible though, as birchen is dominant and he is clearly duckwing. Maybe another rooster or hen is responsible.Got this girl out of Dusty an EE bantam rooster that looked to be Golden blue duckwing and a silver Phoenix hen.
Dusty
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One of Dustys daughters.
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Alot of his offspring have the dark heads. I suspect he may be berchin as well. A few of the offspring females look silver berchin.