I had one a while back that was huge. It was a double yolk. If it's over 16 or 17 grams, it's most likely a double yolk.Initially I was really excited to save my large eggs from my Jumbo Wild Quail. However my 11 year old son said "I think they are double yolks" I was like no way they are supposed to be big. Sure enough I broke some huge ones open and they were all double yolks! No wonder the biggest ones were always clear when I incubated from the ones I bought. If someone has Jumbos and they have a huge egg that is clear would you break it open to see if its a double yolk? Pretty please???
View attachment 2056246