Yup, the eggs can develop with no shell or even with it and then get stuck. Eventually they 'cook' in the hen. I lost a leghorn last week to an egg that broke in her. She was totally normal until one night, she just stopped being with the flock and hid in the shade. Drugs and oil didn't help get the left overs out and by then, infection got her, she was dead in the morning. =(
Have any of you guys butchered a rabbit or bird on a very hot day? The insides darn near steam! That's what the 3 rabbits I did this weekend felt like, I couldn't imagine how it felt like when they were alive. None showed heat stress in anyway, but showing stress is like showing pain, not allowed in the wild if you want to live. Point being that it's very easy for a hen to end up cooking her own eggs.
Was she a RIR? I try and avoid breeds meant to lay high volume and I don't try and force them to start laying again after a break or all year round. I think the break helps their bodies recover, laying eggs isn't natural for chickens these days.
I have two RIRs, one is 1-1.5yrs old, she's just gone broody, other is a little pullet still growing up. Have 5-6 hens all trying to suddenly hatch eggs! The RIR hasn't sat on eggs before, so I let her sit, but many of the others did it over winter or early spring, so I toss those girls out the coop. They had their break! The last hen isn't a breed that lays all that much, so she doesn't need a break and surely not when half the flock is doing it!
Hope your other girls are fine! I'd feel up the others to see if any could be heading in the same direction!
I don't think that type of egg bound is all that curable, probably rarely happens in parrots? I've only heard that they get one egg stuck, with the shell, which is easier to deal with than broken and/or cooked eggs. I'm sure most know eggs expand when cooked and sticks to w/e it was cooked in, makes things a lot worse.