How is your porcelain doing? The kids are what, 6 weeks now? I "almost" think you picked us out 4 pullets. I say "almost" because the Old English has me on the fence. But I'm thinking all the d'uccle are pullets (knock on wood). We had one mille fleur try to escape the brooder the other day and got herself wedged on her back between the layers of cardboard. She was probably only wedged down in there for a few hours (she was in the bin that morning, and then later we noticed 1 was missing). We rescued her & taped up the cardboard part that she got into. She rested for a while and was behaving normally by the next morning.
I bought a FBCM pullet from Wynette last summer. She was probably a bit stressed out from traveling, hanging out at Chickenstock, traveling some more, and then again, etc etc. Through the stress of the day she probably held back laying and we got 2 eggs from her the next day. We had checked on her that morning and there was no egg, but she laid later that morning and again in the afternoon.