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, which runs around the tip; front of the neck white.

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

Saddle-hackle: white or white with black shaft-stripes, similar to the neck-hackle, extending from the tip of the feather no more than halfway down.

Tail: steering-feathers black; support-feathers black with white lacing; sickles and greater-coverts green-glossy black; smaller-coverts green-glossy black 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 that runs around the tip; outer-vane white, forming a complete white wing when it is closed.

Breast, belly, flanks, thighs and rear-part: white.

Down: light blue-grey.

Serious faults

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

Faults

The above serious faults occurring to a lesser extent. Insufficient pattern on the tail support-feathers and the 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, which runs 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 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: inner-vane black with white lace that runs around the tip; outer-vane white, forming a complete white wing when it is closed.

Breast, belly, flanks, thighs and rear-part: white.

Down: light blue-grey.

Serious faults

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

Faults

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

Feather details from:  http://www.kippenencyclopedie.nl

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

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