I've noticed in several of my cookery books that it will say next to a recipe "Vegetarian if made with a free range egg."
I don't get it - I can see that non free-range eggs are less animal friendly but that's a moral issue not a dietary one. Is there something sinister I should know about non-free range eggs?
It's just nosiness on my part, btw - I always buy free range anyway and am not vegetarian.