When I gathered the morning's eggs I found this gargantuan orb beneath our Australorp pullet, Rosanna. I was so stunned I actually exclaimed, "Wow! Rosanna!" I didn't know she had it in her! I tried to weigh this egg on our digital UPS scale but it was too light to register. I had to use my kitchen scale and near as I can figure this egg weighs around 2.6 ounces. The USDA says that a large egg weighs 2 oz, an extra large weighs 2.25 oz, and a jumbo egg weighs 2.5 oz. It's so big I can't keep it in the egg carton with the other eggs because I can't close the lid! Rosanna is a sweet girl and a bit of an airhead. What a good girl!