Isabelquail

Color and pattern male

Head: lavender ground-color, very narrow edged with isabel-yellow.

Neck: large feathers of the hackle are entirely lavender; smaller feathers, higher in the hackle towards the throat, lavender with a very narrow isabel-yellow edge and isabel-yellow shaft.

Shoulders and back: each feather has a lavender triangular center with warm isabella-yellow barbs; the back-feathers also with bright isabel-yellow shaft; back-feathers, broad under the hackle, become narrower towards the back and longer towards the lower back.

Saddle: hackle black with isabel-yellow shaft and broad gold-brown barbs.

Tail: steering-feathers black; sickles lavender; greater-coverts lavender, lesser-coverts lavender with isabella yellow edging.

Wings: bow-feathers lavender with a narrow isabel-yellow edging; greater-coverts isabel-yellow with a lavender spangle at the tip of the feather, forming a lavender wing-bar.

Primariy-flights: lavender.

Secondary-flights: Inner-vane lavender; outer-vane mostly isabel-yellow, tip of the feather lavender; when the wing is closed a wing-triangle is formed.

Breast and front of neck: brilliant isabella yellow overall, each feather has a slightly lighter vein and edging.

Thighs: similar to the breast; the large feathers covering the sides of the breast are lavender with isabel-yellow edging and light isabel-yellow shaft.

Belly: slightly darker than the breast.

Rear-part: light yellow-lavender.

Down: light-lavender.

Serious faults

Deviant pattern on the neck-hackle. Too light ground-color resulting in a lack of contrast with the lavender feathers. Too pale breast color. Lavender pattern on the breast. Lack of pattern on the secondary-flights.

Faults

The above serious faults occur to a lesser extent. The above serious faults occur to a lesser extent. Vague blurry or lack of pattern at the base of the shoulder-feathers.

Color and pattern female

Head: lavender, very narrow edged with isabel-yellow.

Neck: hackle feathers lavender with a narrow isabel-yellow edging, that widens slightly towards the throat; the lower edge of the hackle is almost entirely lavender.

Shoulders, back, and saddle: lavender with a narrow isabel-yellow side-edge and shaft, the side-edge narrows towards the saddle.

Tail: lavender steering-feathers; coverts lavender with isabel-yellow side-edge and shaft; lavender support-feathers with isabel-yellow side-edge and shaft.

Wings: coverts similar to the back; edging broadens towards the wing-flights.

Primary-flights: lavender.

Secondary-flights: inner-vane lavender; outer-vane lavender with a narrow, not sharply defined isabel-yellow at the edge, tip of the feather lavender.

Front of neck, breast, belly and thighs: isabel-yellow, feathers on the sides of the breast, towards the wings and rear-part lavender with gold-yellow edging and shaft.

Rear-part: light yellow-grey.

Down: light-gray.

Serious faults

Deviant pattern on the neck-hackle. Too light ground-color resulting in a lack of contrast with the lavender feathers. Too pale breast color. Lavender pattern on the breast. Lack of pattern in the secondary wing-flights. Too little, too narrow, or too broad isabel-yellow side-edging on back, saddle, tail- and wing-coverts or isabel-yellow shaft pattern too broad. Too much isabel-yellow in the feather-area on the wings.

Faults

The above serious faults occur in minor degrees.

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

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