No other rooster. We got rid of our lavenders last fall. Could it be the black pullets are a real dark blue? One or two have some different breast feathers. I will get pictures of them and better pictures of the chicks tonight.
No, even that wouldn't work. A pure splash rooster just cannot throw black chicks. Are you sure you don't maybe have a juvenile blue or black cockerel lurking in with your pullets?
The only other thing it could possibly be is that your 'splash' rooster isn't really genetically completely splash.
Edit: After more research, I'm certain that's it. Your splash rooster must have been from an outcross of your BBS birds to your lavender birds, which has created a bit of a genetic mess. Check this post for info.
That's also why some of those chicks look like they are self blue, aka lavender - it's because they are. Your colors have gotten mixed and tangled up. That means some of your hens are from your lavender breedings too.
Last edited: