Blue-partridge

Color and pattern of the male

Head: light orange-red.

Neck: from top to bottom changing from orange to orange-yellow; each feather with a bright-blue shaft-stripe, runs parallel to the outline, ends in a point near the tip, no high demands on the sharpness and the intensity; front of the neck bright-blue.

Back, shoulders and wing-arch: light carmine red.

Saddle-hackle: orange to ligh-orange each feather with more or less distinct blue shaft-stripe, absenceis not considered a fault; a slightly deeper tint than in the neck-hackle is permitted.

Back, shoulders and wing-arch: carmine-red.

Saddle-hackle: orange to light-orange; each feather with a more or less distinct black shaft-stripe, absence is not considered a fault; a slightly deeper shade than in the neck-hackle is permitted, equality is desired. 

Tail: steering-feathers, sickles and coverts bright-blue.

Wings: bow and wing-bar bright-blue.

Primary-flights: bright-blue. with a narrow brown edge along the outer-vane.

Secondary-flights: inner-vane bright-blue, outer-vane brown, forming a brown wing-triangle when the wing is closed.

Breast: bright-blue.

Belly, thighs and rear-part: bright-blue.

Down: greyish.

Serious faults

White in sickles, tail and wing-flights. Much brown in the breast, belly and thighs. Straw-yellow in the lower part of the hackles. Rusty blue. Much too dark-blue.

Faults

Minor deviations in color and pattern. Some unevenness and slightly too dark in the tail. Incompletely colored wing-triangle. Absence of the shaft-stripe in the neck-hackle.

Color and pattern of the female

Head: golden-yellow.

Neck: hackle golden-yellow, each feather with a black shaft-stripe, runs parallel to the outline, ends in a point near the tip, no high demands on the sharpness and the intensity; front of the neck similar to the breast.

Back, shoulders, bow, wing-coverts and saddle: each feather golden grey-brown with fine evenly distributed bright-blue peppering, as few  light-colored veins as possible; slightly light lacing permitted but not desired.

Primary-flights: bright blue-brown with a narrow grey-brown outer-vane.

Secondary-flights: outer-vane similar to the back; inner-vane bright blue-brown.

Tail: bright-blue steering-feathers except for the upper ones, which like the coverts are golden-brown with fine bright-blue peppering.

Breast: salmon light reddish-brown transitioning to ash-brown at the thighs, veins salmon. 

Belly, thighs and rear-part: ash-brown.

Down: greyish.

Serious faults

Too red or rusty on shoulders. Too pale breast color. Complete absence of shaft-stripe pattern. Light veins. Excessively coarse or clumped peppering.

Faults

Minor deviations in color and pattern. Slightly clumped peppering and light veins on the breast.

Serious faults

Red or rusty on wings. Brown sheen on back, saddle-cushion and wing-coverts. Light veins. Yellowish tint in the neck-hackle. Complete absence of the shaft stripe pattern.

Faults

The above serious faults occur to a lesser extent. Slightly clumped peppering and light veins on the breast.

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