Blue brassy-back

Color and pattern male

Head and neck: bright-blue , some brown mixing is permitted.

Back and shoulder-arch: black with brass-colored mixing. 

Saddle-hackle: bright-blue with a blurred brown-yellow feather-edge.

Tail: bright-blue, some white at the base of the main-sickles is permitted.

Primary-flights: bright-blue.

Secondary-flights: inner-vane bright-blue, some blurry brass-colored marking in the outer-vane is permitted.

Breast: blue

Belly, thighs and rear-part: bright-blue

Down: grey

Note

Brass-color is under the influence of blue dilution slightly lighter.

Serious faults

Clearly visible shaft-stripe pattern on the head and neck. Marking in the primary-flights. Extensive marking in the outer-vane of the secondary-flights. 

Faults

Serious faults occur to a lesser extent. Too yellow or too light ground-color on back and shoulders. Excessive white in the tail. Too pale, too dark or uneven blue. Entirely or partially black feathers.

Color and pattern female

Head and neck: bright-blue , some brown mixing is permitted; front of the neck similar to the breast

Back, wing-coverts and saddle: bright blue with a brass vein and a cream to blurred brownish feather-edge is permitted.

Tail: bright-blue

Primary-flights: bright-blue

Secondary-flights: preferably entirely blue but may show some blurred brown marking or a blue haze on the outer-edge.

Breast: creamy to light brown in the center; towards the outside mixed with some bright-blue; veins are lighter tinted and clearly distinguishable.

Belly, thighs and rear-part: cream to light brown with some bright-blue mixing.

Down: grey

Note

Brass-color is under the influence of blue dilution slightly lighter.

Serious faults

Clearly visible shaft-stripe pattern on the head and neck. A clearly sharp lacing around the feathers on the back, saddle and wing-coverts. Marking in the primary-flights. Extensive marking in the secondary-flights. 

Faults

Serious faults occur to a lesser extent. Absence of the cream-coloured to brownish hazy marking on the back, shoulders, and saddle. Too pale, too dark, or uneven blue. Entirely or partially black feathers.

Feather details from:  http://www.kippenencyclopedie.nl

Website from Johan Albada with more than

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

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