What’s the chances. Bought a tray of eggs yesterday. Used first 4 for breakfast. (2 each afore ya say owt) this morning. ALL 4 double yolkers. ? Be interesting when rest get used.
There is a way to tell if an egg has a double-yolk. I believe most of them are filtered out during and used within the food production industry, e.g. cake makers.
After keeping hen's for 40 years I find Double Yorkers are usually laid by young hen's some lay marble size some lay D Yer's.