How to get Pure Lavenders from Blue-Lavender Crossed(mixed) Birds

[NatJ]

@NatJ i need help, it looks like bloodline messed up
We got 1 splash or broken? Sussex from 4+1 Light sussexs of Crossed coronations.
How this is possible ????
or will this chicks turn to Lavender Coronation ? 40 day old

I don't think the color is going to change as it grows more.

So both parents of this bird were Light Sussex (showing white and black, no visible blue, no visible lavender).

But you're saying this bird seems to have splash instead of black or lavender for the markings? (My computer doesn't always display colors quite right, so I'm trying to be sure i have it right.)

I have read of some "blue" chickens that are so dark they get mistaken for black. Maybe one or more of your Light Sussex actually have really dark blue?

 

[RiverOtter]

How long did you have your Light group separated for? If they weren't completely separated, or were separated for less than a month, there is a chance that some other rooster is the father. The chance decreases pretty sharply after 2 weeks, but can't be totally sure till a month has passed, as hens can retain sperm.

 

[JinHayabusa]

How long did you have your Light group separated for? If they weren't completely separated, or were separated for less than a month, there is a chance that some other rooster is the father. The chance decreases pretty sharply after 2 weeks, but can't be totally sure till a month has passed, as hens can retain sperm.

They did seperated until 2 month,i think no chance of cheating with other roo
I didn’t see any lavender chick before. Maybe they will show there lavender colour later ?? Now some feathers look dark blue, other dark

 

[JinHayabusa]

Guys look what i bought
i found only 1 original Lavender, all others’s bloodlines got mixed
is she look like original Lavender ?