Silver-partridge
Color and pattern male
Head: silvery-white.
Neck: hackle silvery-white, each feather with a black shaft-stripe, no high demands on the sharpness and the intensity, ends in a point near the tip; front of the neck black.
Back, shoulders and wing-arch: silvery-white.
Saddle-hackle: silvery-white, each feather with a more or less distinct black shaft-stripe, absence is not considered a fault.
Tail: steering-feathers black; sickles and coverts green-glossy black.
Wings: bow black, wing-bar green-glossy black.
Primary-flights: black with a narrow white edge along the outer-vane.
Secondary-flights: inner-vane black, outer-vane white, forming a white wing-triangle when the wing is closed.
Breast: green-glossy black.
Belly, thighs and rear-part: black.
Down: greyish.
Serious Faults
Yellow tint in hackles. Rusty-brown or red on the shoulders. Extensive white on the breast, belly and thighs. White on the tail.
Faults
Serious faults occur to a lesser extent. Incomplete white wing-triangle. Complete lack of the shaft-stripes.
Color and pattern female
Head: silvery-white.
Neck: hackle silvery-white, each feather with a black shaft-stripe, no high demands on the sharpness and the intensity, ends in a point near the tip; front of the neck similar to the breast.
Back, saddle, shoulders, bow and wing-coverts: each feather light-grey with fine evenly distributed black peppering, slightly light lacing permitted but not desired.
Primary-flights: black-grey with a narrow greyish-white outer-vane.
Secondary-flights: outer-vane similar to the back; inner-vane greyish-white.
Tail: black steering-feathers except for the upper ones, which like the coverts are light-grey with fine dark-grey peppering.
Breast: salmon transitioning to light-grey at the thighs, veins salmon.
Belly, thighs and rear-part: ash-grey.
Down: greyish.
Serious Faults
Red or rust on wings. Brown sheen on back, saddle and wing-coverts. Light veins. Yellowish tint in the neck-hackle. Complete lack of the shaft-stripe pattern.
Faults
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 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
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