Note

As the chickens of the millefleur color varieties age, the amount of white in the pattern will increase. Two-year-old chickens generally have the best pattern distribution.

Color and pattern male

Head: silvery-white.

Neck: hackle silvery-white; each feather ends with a green-glossy black spangle with a diamond-shaped pure white mottle and a silvery-white ornamental fringe on the sides; front of the neck similar to the breast.       

Back and shoulders: silvery-white, each feather with a diamond-shaped, green-glossy black spangle and a tiny white mottle at the tip.

Saddle-hackle: similar to the neck-hackle, the shaft-stripe as well as the mottle are less noticeable because the feathers ends thinner than those of the neck-hackle.

Tail: steering-feathers black, each feather with a white mottle at the tip; sickles and coverts green-glossy black with a tiny white almost V-shaped mottle at the tip.

Wings: bow almost black; wing-arch silvery-white, sparsely with tiny white mottles; greater-coverts silvery-white, each feather ending in a large, almost round, green-glossy black spangle with a almost V-shaped white mottle, forming a clear black and white wing-bar when the wing is closed.

Primary-flights: inner-vane black, outer-vane black with a narrow white lace and a white mottle at the tip.

Secondary-flights: outer-vane silvery-white, inner-vane dull black widening at the end to the-outer vane connecting to the white mottle.

Breast: silvery-white, each feather ends in a large, almost round, green-glossy black spangle with a V-shaped white mottle.

Belly, thighs, leg- and foot-feathering: approximately similar to the breast. 

Down: grey.

Serious faults

Too strong development of the spangles on the breast. Coarse or too few white mottles. Complete vague blurry pattern. Too much white in leg-and foot-feathering.

Faults

 Shaft-stripes on the neck-hackle. Slightly too much white in over-aged chickens.

Color and pattern female

Head and neck: silvery-white, each feather ends with a green-glossy black spangle with a diamond-shaped pure white mottle; front of the neck similar to the breast.       

Back, shoulders, breast, bow, wing-coverts and saddle-cushion: silvery-white, each feather ends in a large, almost round, green-glossy black spangle with a V-shaped white mottle.

Tail: steering- feathers dull black, with a diamond-shaped pure white mottle; coverts similar to the breast; the upper-covert on each side is covered by a strongly elongated covert, which is, except for the slightly longer black spangle, similar to the other coverts.

Primary-flights: inner-vane black, outer-vane slightly silvery-white laced , lower end of the feathers white laced. 

Secondary-flights: outer-vane silvery-white, inner-vane dull black widening at the end to the-outer vane connecting to the white mottle.

Belly, thighs, rear-end, leg- and foot-feathering : approximately similar to the breast. 

Down: grey.

Serious faults

Too few spangles on the breast. Coarse or too few white mottles. Complete vague blurry pattern. Too much white in leg- and foot-feathering.

Faults

Shaft stripe pattern on the neck-hackle. Slightly too much white in over-aged and older chickens.

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