I copied some info about the Lavendar color from this web page about d\'Anvers.
http://home.ezweb.com.au/~kazballea/belgians/lowgraphic.htmBreeding combinations
The following gives a basic idea as to the results of pairing Lavender with Black varieties, Cuckoo with non-barred, Blue with Black & Splash, White with coloured varieties, Mottled with non-mottled & Silver with Gold.
* Lavender (recessive)
eg
Black/Lavender, Black Mottled/Lavender Mottled, Millefleur/Porcelaine, Silver Millefleur/Silver Porcelaine, Quail/Lavender Quail, Silver Quail/Lavender Silver Quail breeding combinations.
Black + Lavender = 100% Blacks, all carrying Lavender
Black (carrying Lavender) + Black = All black, 50% carrying Lavender
Black (carrying Lavender) + Black (carrying Lavender) = 75% Blacks [50% carrying Lavender, 25% pure Blacks], 25% Lavender
Black (carrying Lavender) + Lavender = 50% Blacks [all carrying Lavender], 50% Lavender
Lavender + Lavender = 100% Lavender
------------------------------------------------------------
* Andalusian Blue (incomplete dominant)
eg
Black/Blue/Splash, Black Mottle/Blue Mottle, Millefleur/Blue Millefleur/Golden Neck (Splash Millefleur), Silver Millefleur/ Blue Silver Millefleur, Quail/Blue Quail/Splash Quail, Silver Quail/Blue Silver Quail, Buff Columbian/Blue Buff Columbian, Columbian/Blue Columbian breeding combinations.
Andalusian Blue + Black = 50% Blacks, 50% Andalusian Blue
Andalusian Blue + Andalusian Blue = 25% Blacks, 50% Andalusian Blue, 25% Splash
Andalusian Blue + Splash = 50% Andalusian Blue, 50% Splash
Splash + Splash = 100% Splash
Splash + Black = 100% Andalusian Blue
-------------------------------------------------------
How to distinguish between Lavender & Blue
It is very easy to identify a Lavender bird by looking at the main tail feathers. If the outer-side feather shaft is pale & the inner feather shaft is dark, it is more than likely Lavender. The inner feather-web has a darker iridescent-like sheen, extending outwards from the shaft.
The andulusian type blue (Bl/bl) usually have dark feather shafts, regardless whether laced or non-laced. No matter how pale in colour, the blues (Bl/bl) don\'t have the same tail characteristics (as above), as the lavenders. the lav/blues have a combination of traits from both varieties.
Some signs of lav/lav, Bl/bl (Lavender/Blue) are:
* paler lavender shade
* darker feather shafts
* roos with darker hackles.
It is rather frowned upon in the Belgian Barbu bantam world, mixing lav (Lavender) with Bl (Blue), as the above traits are considered flaws in lavender varieties. Lavenders are to have:
Lavenders (lav/lav)
Both genders:
* even lavender shade throughout,
* no sexual dimorphism
* Light feather shafts on outside
* Darker feather colour (web & shafts) on inside. This applies to both Lavender colour & gold/straw colour on Porcelaines.
There is the known feather quality issues with lavenders, eg wing patch in roos, fret marks, etc, although the wing patches are not found in all lavenders. Then there is the trait of darker flecks or darker feathers in the blues, plus the sexual dimorphic traits.