Those chickens have been busy.
I had heard chickens could be loud and I thought, as did my neighbors, that we had quiet chickens. What I didn't read in any book is that when the chickens start laying the noise kicks in. The first few times they laid we thought there was a predator in the yard and went rushing to the coop. It turns out when a chicken pushes one of those eggs out they just need to let everyone know. I imagine they're saying "look what I did!" or "OMG what is happening?!" it's the typical loud brock brock brock noise and we now hear it every morning, luckily not too early!