Cuckoo
Color and pattern male
Plumage: bright and as even as possible over the entire body; each feather dark-grey, three or four times crosswise interrupted by a light-grey slightly arched bar, which is not sharply defined.
Ornamental feathers: the number of crosswise bars is larger in proportion to the length of the feather, the bars tends towards an inverted V mostly in the neck- and saddle-hackle; slightly white at the base of the tail is permitted, if it is not visibly disturbing from the outside.
Cuckoo males are allowed in either purebred or impurebred:
- Purebred, the light-grey bars are clearly wider than the dark-grey bars; the overall appearance is lighter then the female.
- Impurebred, the light-grey bars are slightly narrower than the dark-grey bars; the overall appearance is similar to the female.
Down: light-grey, without barring.
Serious faults
Complete mis-colored feathers. Strong yellow or rusty brown in the ornamental feathers. White in wing-flights, sickles or large main tail-feathers. Too few barring in tail, wings and breast of impurebred.
Faults
A few mis-colored feathers. Barring in the down.
Color and pattern female
Plumage: similar to the male but appears darker because the light-grey barring is slightly narrower than the dark-grey barring.
Serious faults
Too few shaft-stripes. Too few barring in neck-hackle, wings and tail. White in wing-flights.Too little barring in wings and tail.
Faults
Slightly too light or slightly too dark color. A few off-colored feathers. Clear barring in the down.
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.
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