Green  (= Normal)

Inheritance:  Dominant.

Details:

   - Rich mid-green, with slight iridescence in the male.

   - Female slightly duller.

   - All Normal markings present.

Blue

Inheritance:  Autosomal Recessive.

Details:

   - All Green feathers are replaced by Blue.

   - Red and Orange head feathers are replaced by Beige.

   - Yellow belly feathers are replaced by Cream or Beige.

Notes:

   - Babies fledge Grey-blue.

- Split Blues can sometimes be identified by those with good colour vision (more often women) by a subtle Blue/dull wash through the Green feathers.

Seagreen

Inheritance:  Uncertain: Possibly Autosomal Recessive. Appears to be a Parblue. May be Acquired.

Details:

- Green feathers replaced by a compromise between Blue and Green.

   - Red and Orange head feathers are slightly reduced in intensity.

   - Yellow belly feathers are slightly paler.

Pastel, sex-linked  

 = Yellow-back, Single & Double Factor 

Inheritance:  Co-dominant, sex-linked. The Pastel gene causes dilution of any back colour, be it Green, Blue or other variations.

Details:

Hens are always Single Factor (SF):

-  SF Pastel Green hens  appear Yellow. Black markings are replaced by extremely pale Grey or White. Blue markings are replaced by extremely pale Blue-grey or White.

-  SF Pastel Blue hens  appear White or Silver-white. Black markings are replaced by extremely pale Grey or White. Blue markings are replaced by extremely pale Blue-grey or White.

Cocks can be Single Factor or Double Factor (DF):

-  SF Pastel Green cocks   range from pale Green to Yellow-green. Black markings are replaced by Grey. Blue markings range from pale Blue to extremely pale Blue-grey.

-  DF Pastel Green cocks  appear Yellow. Black markings are replaced by White. Blue markings are replaced by extremely pale Blue-grey or White.

-  SF Pastel Blue cocks  are powder Blue. Black markings are replaced by Grey. Blue markings range from pale Blue to extremely pale Blue-grey.

-  DF Pastel Blue cocks  are Silver-white. Black markings are replaced by White. Blue markings are replaced by extremely pale Blue-grey or White.

Variations:

- White-breasted SF or DF Pastel Green birds display purer Yellow than Purple-breasted birds (similar to Australian Yellow). Blue markings become pale Blue or Blue-grey in SF, and White in DF.

- White-breasted SF or DF Pastel Blue birds appear more Silver or White than Purple-breasted birds. Blue markings become pale Blue or Blue-grey in SF, and White in DF.

Notes:

A ‘lethal factor’ exists. Do not breed DF cocks with SF hens or you will lose chicks in the nest.

Dilute

Inheritance:  Autosomal Recessive.

Details:

- Visually very similar to SF Pastel cocks, although usually a slightly lighter lime Green.

   - Breast and belly colours are the same as Normal birds.

- Black head feathers and pencil lines become Grey to very pale Grey.

   - Blue markings become extremely pale Blue.

Variations:

Due to the confusing action of the two genes, White-breasted Dilutes show Black pencil lines and Black head feathers approximating 85% of Normal colouring – i.e. A much darker Grey than Purple-breasted Dilutes!

Notes:

- Babies have reddish eyes – an Albinism trait, rather than true ‘Dilute’. Eyes darken with age.

- Juveniles are pale Cream.

- Rare mutation. Believed to be found in Australia only.

Yellow

 = Australian Yellow 

Inheritance:  Autosomal Recessive.

Details:

   - Visually similar to White-breasted Pastel.

   - All Black markings are replaced by White.

- Purple breast is replaced by White. (Unrelated to White-breasted gene.)

   - Mature birds have pure Yellow backs.

- Young birds sometimes have Green variegation across their shoulders and back, and some Grey markings.

Notes:

Considered to be unknown outside of Australia, although some birds rumoured to have been found in Europe and the US.

   is a proud supporter of...

Who's Ya Doggy? Online dogs home

Go there if you have lost your pet dog, or found someone else's dog.

...or check out their incredible Dog Breed Selector - the most comprehensive breed guide on the internet.

Home