Right now I haven't even gotten an egg yet. I've seen my male breed, daylight is longer, and lately we've been upper 70s low 80s.
As a four year old last year, the (now 5 yo) IB?BS hen that has produced most of the chicks that I've hatched this season, produced 30-40 eggs without stopping. She finally stopped when I left enough eggs for her to start sitting on them as a clutch. That's part of the reason that I gave her ceramic eggs this year -- she lays like a chicken and I don't want her to wear herself out. I bet she laid at least 25 so far, and she only stopped because she had like 9 eggs in a clutch and started sitting on them... Might have been a couple more, come to think of it, cause I swiped a few. She was grabbing eggs from the little SP hen too... And five of her clutch were ceramic duds... I just figured it was time for her to have a rest. Of course, now she has three little chickies... I never thought she'd be dedicated enough to hatch them, but she hatched every one she had except the one SP hen egg that was clear, not a quitter, it was apparently not fertilized.
Anyway, she just goes and goes and goes. Wouldn't surprise me if she lays another clutch later on. She's really into this whole egg/hatching thing now
BTW, I found dull (not shiny) ceramic eggs at Tractor Supply, for cheap. They come in white egg color and in brown egg color. Got the brown ones and the hen happily treats them as her own, though they are chicken egg-sized, not peafowl egg-sized...