I have a hen that has been egg bound for about a week and a half. I have let her soak in warm water and have given her veg oil. Nothing has worked to help her pass. I believe the egg shell has cracked inside her because you can see the yolk through the skin. I think my last resort is removing the egg by withdrawing it by needle. Has anyone ever done this before? This was the advice I was given by someone who has had chickens for years and years. Thanks for reading.