My smallest barred rock just laid her first egg, so now all 4 are laying, some more inconsistent than others, but that's okay. My RIR has sang the egg laying song for everyone's first egg except for her own! She is so funny and after they lay, she doesn't sing it any more. It was so funny, when my Clemi was in her nest trying to lay, they were both singing, this went on for at least a couple of hours. I left her alone for a while, and went back out & they were still singing. Finally, she hopped off the nest and left an egg behind!