Color and pattern of the male

Head: dark red-brown.

Neck: hackle deep orange-red; each feather has a strong glossy green-black shaft-stripe, running almost parallel to the feather-outline, ends in a point near the tip; vein black; front of the neck black.

Back , shoulders and wing-bows: dark red-brown.

Saddle-hackle: similar to the neck-hackle.

Wings: black front; distinct glossy green-black wing-bar across the wing when closed.

Primary-flights: black, except for the outer-web, which has a brown edge.

Secondary-flights: inner-web black, outer-web dark-brown, forming a dark-brown wing-bay when the wing is closed.

Tail: main-feathers black, sickles and coverts glossy green-black. 

Breast: glossy green-black.

Belly, thighs and fluff: black.

Down: greyish.

Serious faults

Far too light color in neck- and saddle-hackle. Far too weak or broken shaft-stripes. 

Faults

Serious faults to a lesser extent. Incomplete colored wing-bay.

Color and pattern of the female

Head: red-brown.

Neck: hackle red-orange on top, transitioning to dark-orange towards the bottom with a strong black shaft-stripe, running parallel to the feather-outline, ends in a point near the tip; front of neck salmon-colored.

Back, shoulders, tail-coverts, wing-coverts and saddle: red-brown, a narrow fringe along the feather-outline, against which black peppering is clustered, creating a crescent-shaped, blurred dark pattern; lighter vein contrasts clearly with dark feather-color.

Tail: main-feathers black, except the ones on top which are similar to the shoulders.

Primary-flights: black.

Secondary-flights: inner-web black, outer-web red-brown with black peppering.

Breast: deep salmon-colored red-brown.

Belly and thighs: slightly less darker then the back.

Fluff: red-brown.

Down: red-brown, slightly greyish. 

Serious faults

Far too light neck-hackle. Lack of or broken shaft-stripes. Far too light color of the back, shoulders, tail-coverts, wing-coverts and saddle. Far too light breast-color. Lack of the crescent-shaped color cluster. 

Faults

Serious faults to a lesser extent.

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

Website from Johan Albada with more than

                5000 photos of chickens, chicken color varieties and feathers.              

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