Red-partridge

Color and pattern male

Head: rich golden-brown.

Neck: hackle rich golden-brown, lower hackle feathers with somewhat black shaft-stripes; front of neck black similar to the breast.

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

Saddle: hackle golden-brown, feathers bordering the tail-coverts have barely visible shaft-stripes.

Tail: main- and support-feathers black; sickles and coverts glossy green-black, the latter slightly brown-laced.

Wings: front black, wing-bar somewhat violet-like glossy black with or without some peppering

Primary-flights: black with a narrow brown edge along the outer-web.

Secondary-flights: inner-web black with a slightly brown peppered edge and feather-end, outer-web umber-brown, forming a umber-brown wing-bay when the wing is closed.

Breast: black, visibly mixed witrh red mottling.

Flanks: black mixed with some brown.

Thighs: dull black slightly  more heavily mixed with brown.

Belly: dull black whether or not mixed with some brown.

Fluff: grey to pale-black mixed with some brown peppering.

Down: greyish.

Serious faults

White in any part of the plumage. Red breast and strong shaft-stripes.

Faults

Too much brown on the breast, flanks, thighs and belly. Slightly too much shaft-stripes. Incomplete colored wing-triangle.

Color and pattern female

Head: golden-brown.

Neck: hackle from top to bottom changing from red-brown to light golden-brown with slightly interrupted blackish shaft-stripes with a golden center in the lower half of the hackle, black increasing slightly in intensity towards the bottom; front of neck similar to the breast.

Back, shoulders, wing-coverts and saddle: warm red-brown each feather with blackish peppering without light edging.

Primary-flights: outer-web black with yellow-brown peppering, inner-web dull black, slightly brown peppered at the tip.

Secondary-flights: outer-web brown with black peppering, inner-web more strongly peppered.

Tail: dull-black main-feathers except for the upper ones, which are peppered with dull-brown along the edges, coverts similar to the back with slightly more blackish peppering.

Breast: evenly salmon brown-red.

Thighs: salmon-brown

Belly: salmon-brown changing to brown-grey towards the fluff.

Fluff: brown with greyish peppering.

Down: greyish.

Serious faults

White in any part of the plumage. Solid red feathers on back, shoulders and wing-coverts. Too light ground-color.

Faults

Too red or too grey glow on back, shoulders, wing-coverts and saddle. Too much shaft-stripes. Light veins.

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

Website from Johan Albada with more than

         5000 photos of chicken-breeds, 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