Cuckoogoldpartridge

Color and pattern of the male

Plumage: basicly similar to goldpartridge, but all black, orange, carmine, and brown feather areas are regularly crosswise patterned by V-shaped, less sharply defined, lighter-colored bands. 

Neck- and saddle-hackle:  each feather with a barred shaft-stripe, the sharpness of the pattern and the intensity of the shaft-stripe are not high requirements, the shaft-stripe runs parallel to the feather-edge, ends in a point near the tip.; the saddle-hackle has more or less distinct shaft-stripe pattern, absence of pattern is not considered a fault.

Back, shoulders and wing-triangle: some cuckoo-pattern can be observed.

The barred pattern can be present in both purebred and impure males, which are allowed:

- Purebred male: the lighter bars are bright greyish-white and clearly wider than the dark-grey bars; the overall appearance is light.

- Impure male: the lighter bars are greyish-white and clearly narrower than the dark grey bars; the overall appearance is similar to the color and pattern of the female.

Serious faults 

- Purebred male: sickles and/or steering-feathers mostly white; completely off-color feathers.

- Impure male: white in the tail and/or wings; too few cuckoo pattern in the wings, tail, and breast; completely off-color feathers;

In addition, for both purebred and impure males: excessive brown in the breast, belly and thighs; straw-colored in the lower part of the neck-hackle.

Faults

The above serious faults are less common. Too light ground-color on the neck. Incomplete colored wing-triangle.

Color and pattern of the female

Plumage: basicly similar to goldpartridge.

Neck: each hackle feather with a barred shaft-stripe; the sharpness of the pattern and the intensity of the shaft-stripe are not high requirements; the shaft-stripe runs parallel to the feather-edge, ends in a point near the tip.

Shoulders, wing-coverts, wing-bar, back, saddle and tail-coverts: cloudy grayish-brown with black peppering, interrupted several times transversely by bands that are lighter than the ground-color and do not show peppering in those areas; the cloudy and the ground-color with peppering blend smoothly into each other.

Primary-flights: blackish-brown and interspersed transversely with slightly lighter bands, the transition between the lighter and darker bands is smooth.

Secondary-flights: outer-vane brownish-grey with black peppering, interspersed several times transversely with lighter clouding and showing no peppering in any area, the lighter and darker bands merge smoothly into each other; inner-vane blackish-brown and interspersed transversely with slightly lighter bands, the transition between the lighter and darker bands is smooth.

Tail: steering-feathers blackish-brown and transversely interrupted with slightly lighter bands, the transition between the lighter and darker bands is smooth.

Breast: as evenly salmon-colored as possible.

Note

A sligtly lighter edging of the back and wing-coverts is permissible but not desirable.

Serious faults

Complete absence of cuckoo pattern on the neck-hackle. Absence of peppering on the shoulders. Too light veining. Very coarse or clumped peppering. Prominent cuckoo-pattern on the breast. Too pale breast color. Too little cuckoo-pattern on the wings and tail. Excessively contrasting cuckoo-pattern (clouding) on ​​the shoulders, wing-coverts, wing-bar, back, saddle and tail-coverts. Complete white feathers in wing-flights young chickens.

Faults 

The above serious faults occur less frequently. Too light ground-color on the neck-hackle.

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website with all available information regarding chicken genetics including the chicken color calculator.