Can a bantam hatch from a full size egg

[wyancrazy]

I have 2 chicks (about 16 weeks old) who appear to be bantams. However, I'm certain they hatched from full sized eggs. Is that possible?

Hi 3 chicks, I just saw your post and thought about my tiny chick. Blackie hatched out of a rather large egg and the parentage could be Father: Silkie or Silver Laced Wyandotte Mother: Black Orpington, Barred Rock, Silkie, or a Bantam (bantam type unknown). I for sure thought the chick would be huge, but at one month old Blackie is still only 80 grams and compared to the other chick that hatched out of a tiny egg (I presumed the tiny egg would give a Silkie or Bantam) that chick Blondie is 250g and towers over the wee chick even though they hatched on the same day!!
This chick also doesn't do much apart from chirping the whole time and sleeping and eating. Doesn't like to run around much, but I hope it'll catch up with being excited to be alive like the other chick!
Rowena.

 

[chickengeorgeto]

In the past I had full sized Clarets (wine colored Black Breasted Reds) produce bantam sized pullets and cockerels. I then tried to breed these same bantam sized pullets and cockerels and when they grew up I only got full sized chickens.

Any thing else and you could tell the size of the offspring by looking at the size of the fathers' and mothers' sperm and ovum.

 

[RWise]

I got hold of a cross rooster, he is a fairly big boy, or at least he looks big (all poof). In breeding him to work this oddity a bit, I do get throwbacks to the bantam side, even from his son, and I expect that to continue.