White black-columbian
Color and pattern male
Head: white.
Neck: each hackle-feather with a medium-wide green-glossy black shaft-stripe, surrounded by a narrow silver-white lace running around the tip; front of the neck white.
Back, shoulders and saddle-hackle: white, below the neck-hackle black and white.
Tail: steering-feathers black; support-feathers black with white lacing; sickles and coverts green-glossy black; smaller-coverts with narrow silver-white lacing.
Wings: bow white, may be partly black; wing-arch and wing-bar white.
Primary-flights: black with white lace on the outside of the outer-vane.
Secondary-flights: inner-vane black with white lace running around the tip; outer-vane white, forming a complete white wing when it is closed.
Breast, flanks, thighs, belly and rear-part: white.
Down: white, light grey permitted.
Serious Faults
Insufficient or broken shaft-stripes in the neck-hackle. White in the sickles. Presence of black in areas that should be white. Shaft-stripes in the saddle-hackle. Strong yellow tint in the ornamental feathers.
Faults
Serious faults to a lesser degree. Insufficient pattern in tail support-feathers and wing-flights.
Color and pattern female
Head: white.
Neck: each hackle-feather with a medium-wide green-glossy black shaft-stripe, surrounded by a narrow silver-white lace running around the tip; front of the neck white.
Back and shoulders: white, below the neck-hackle black and white.
Tail: steering-feathers black, except for the top two feathers, which are vague white-laced; coverts black with narrow white lace.
Wings: bow and coverts white.
Primary-flights: black with white lace on the outside of the outer-vane.
Secondary-flights: inner-vane black with white lace running around the tip; outer-vane white, forming a complete white wing when it is closed.
Breast, flanks, thighs, belly and rear-part: white.
Down: white, light grey permitted.
Serious faults
Insufficient or broken shaft-stripes in the neck-hackle. Broad and vague white lace tail-coverts. Presence of black in areas that should be white.
Faults
Serious faults to a lesser degree. Insufficient pattern in tail-coverts and wing-flights.
Genetic code: https://kippenjungle.nl/Overzicht.htm
Website from Henk Meijers with all available information regarding chicken genetics including the world famous
Chicken Color Calculator
Create Your Own Website With JouwWeb