Bantam laying or standard hen starting small?

[harice4806]

Found the 1st egg in the coop where I keep 3 bantams (2 golden sebrights and an OEGB gender not known yet) and 3 standard hens (ISA and RIR). The egg on the left is from my older hens. Middle egg is from my hens that started laying a month or so ago. On the right is the egg I found in the "babies" coop. Maybe an inch long top to bottom. Possible bantam or just one of the standards starting out smaller than normal?

 

[KentuckyJanet]

Hard to say, I don’t have any bantams but my pullets all started laying and their eggs are small compared to my hens eggs.

 

[KikiLeigh02]

I would guess that is just a first egg from a full size pullet. How old are your ISA's and RIR's?