My Buff Orpingtons and Golden Sex Links run together separately from the rest of the flock, because they are older, born in mid-May. I keep hearing what I think is an egg-laying song coming from under the grapevines. My mom said she heard from the feed store employee she met on a bus tour that chickens can start laying this early (3 months of age). Is it true? I tried to look under the grapevines today but it is just impossible without tearing off my developing grapes or making a mess of my clothes. I was going to close off the grape access with some fencing when they started laying. I thought I had more time.