Cluck cluck

Tim and I went across the street last week to feed our neighbors' chickens. He happened to be home and invited Tim to collect the eggs from the laying boxes inside the coop. Tim thought it was pretty cool - especially the egg that felt warm. (That one was in the box that just had a chicken in it) We even got to bring the eggs home! Tim suggested we have eggs for dinner that night and so we made a frittata. We had to supplement with 3 eggs from the store (the chickens had been outside since the weather was so nice so there weren't quite as many eggs in the boxes. they sometimes lay in the trees! well, that and Tim had eggs for lunch too) Can you tell which ones are the store eggs?