The biggest egg I've gotten was from a layer who always laid big big eggs. They were always bigger than store-bought eggs but not by too much. She was in need of rehoming and was gifted to us, but I don't know what breed she was as she died of old age a couple years ago.
Now, the smallest egg...
There is so much light pollution where I live in San Diego, Ca, that I don't need Fireflies and probably wouldn't be able to see them anyways! Although I do admit that I wish we had them (and a darker sky).:th:lau
Wow. I think this is so cool! Unfortunately I don't have a phone, but I will ask my dad if I can add it to his (I think it's an android). I will get back to you!