White blackcolumbian

Color and pattern male

Head: white.

Neck: each feather of the hackle has a medium-wide, green-glossy black shaft stripe, surrounded by a narrow, silver-white lace, which runs around the feather-tip; front of the neck white.

Back and saddle feathers: upper plumage white, between the shoulders below the neck-hackle black and white; saddle-hackle white.

Tail: steering-feathers black; support-feathers black with white lacing; sickles and coverts green-glossy black; small-coverts green-glossy black with narrow silver-white lacing.

Wings: bow white, may be partly black; shoulder 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 that runs around the feather tip; outer-vane white so that when the wing is closed it is completely white.

Breast, belly, body and thighs: white.

Down: white.

Serious faults

Insufficient pattern in the neck-hackle. White in the sickles. Pattern in the saddle-hackle. Strong presence of black in the parts that should be white on the surface, such as the wing-coverts,breast, body and thighs. Broken shaft stripe pattern. Strong yellow tint in the ornamental feathers.

Faults

The above serious faults occurring to a lesser extent. Insufficient pattern in the tail support-feathers and the wing-flights.

Color and pattern female

Head: white.

Neck: hackle, starting approximately at the transition of neck and head, has a medium-wide, green-glossy black shaft stripe pattern, completely surrounded by a narrow, silver-white lace; feathers on the front of the neck white.

Shoulders: white.

Back: white, between the shoulders below the neck-hackle black and white.

Tail: steering-feathers black, except for the top two feathers, which are faintly 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: inne- vane black with white lace that runs around the feather tip; outer-vane white, so that when the wing is closed it is completely white.

Breast, belly, thighs and rear-part: white

Down: from white to light blue-grey.

Serious faults

Insufficient pattern in the neck-hackle. Broad and indistinct white lace tail-coverts. Strong presence of black in the areas that should be white on the surface, such as the wing-coverts, breast and the body. Broken shaft stripe pattern.

Faults

The above serious faults occurring to a lesser extent. Insufficient pattern in the tail support-feathers and the wing-flights.

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website with all available information regarding chicken genetics including the chicken color calculator.