This is our first experience raising chickens. We have 15 Cuckoo Marans, they are 28 weeks old and have been laying for about 8 weeks. Today my mother in law found something totally unexpected an incredibly large egg. It weighs 136 grams!! It is so large that I am worried about the chicken’s health. Our hens have been laying med/large eggs, with the occasional large/jumbo double yoker but this one is huge. My wife asked which hen I thought laid the egg, and I said: "That is easy look for the one that's walking funny". Since all of our hens are the same breed, they all look the same, and it is impossible to tell which one laid the egg. So should we be worried? Your thoughts and comments are appreciated.