Egg production going back up

My hens seem to be recovering from their first moult and as a result, the number of eggs they produce has gone back up. There were 7 laid yesterday, 5 of which came from the older hens - ie those we purchased last year and in January. One of those hens is yet to start laying again. The other two come from the white leghorn and the pied suffolk we got at the start of July. The White leghorn started laying through the week and the suffolk laid her first yesterday. We are of course awaiting the first egg from the nine new hens we got last week but it will probably not be for at least a couple of weeks yet before we get anything from them.