Ok, thank you, that makes sense because the 3 Isa Browns seemed to look the most ready to lay due to the size and color of their combs. I suspect it was a couple of them.
We are thrilled! They are 20 weeks and my 9 y/o son found them tonight while we were locking up the coop. Question is-one of the Buff Orpington girls was in one of the nest boxes (not where we found the eggs) when we went in tonight (almost dark). All the others were on the roost, and she was...