Interesting. Mine produce non-vaulted, & partialy vaulted skulls. The vaults on mine are barely visible, just a little bump on the head is noticeable.Yep they do, the chick a the back is this one from the other day:
View attachment 1959168
They're both from the same hen. I've worked it out that roughly she produces a ratio of 1 vaulted to every 4 non vaulted chicks.
	
 We have had to manually put them into their coop each night for months because they can't figure out that they are supposed to do it themselves. But we love em anyway!!
		