I'm having trouble with one of my chickens eating her own egg. The weird thing is that she's only eating her own, not other eggs.
She's only a pullet and has just started laying. In fact, we thought she wasn't laying even though the others from her clutch started a few weeks ago. We were wondering why she hadn't started yet, but we caught her in the act the other day so she has probably been doing this for a few weeks without us even knowing about it.
The chickens free range during the day and also have access to plenty of oyster shell grit, as well as layers pellets and food scraps, so she should be getting all of the nutrition she needs. There are only three of them altogether and they have two nest boxes so overcrowding isn't a problem.
I know about the mustard trick but the problem is she's only eating her own egg immediately, as soon as she has laid it. She leaves the other chickens' eggs in the nest alone and does not go near them. If I was to replace an egg with a mustard filled egg, I don't think she would eat it.
Has anyone ever heard of a chicken eating her own egg but not others' eggs? Are there any other ways to stop her?
Any help would be appreciated! Thanks