[quote="Frostfire"][quote="veganlifter"]I understand what you are saying about hens eating their own eggs, but how common is it?
Hi, just wanted to chime in with my experience. I've been volunteering at a farm animal rescue (see signature) since 2001. We get lots of eggs, especially in the spring, from our hens, peahens, guinea fowl, geese, turkeys, emus, etc and every one of the eggs is fed back to the girls and their flock/gaggle, etc. They go nuts when you crack the eggs open just a little, even if they are in their house and they hear you crack an egg they will come running! It is very common and is what I recommend for every rescue to do with their eggs. Life Rodolfo has said, it takes a lot of energy and vitamins to make an egg, it makes sense that those nutrients go back to the hens.
Respect to you for volunteering at a sanctuary, that's a long time since 2001.
I once say someone on the interenet say hens only eat their own eggs if they're not fed properly. OF course this is just what one person has said and I am not implying your hens are not fed properly.
Do they eat their own eggs when they've been cracked? If so, is that because they then know the egg has no chance of turning into a chick?