Sylvia’s dysfunctions are many. She tries to sleep on top of her house instead of inside it. She pecks at the other chickens and has trouble keeping friends. And worst of all, she is always finding new ways to fail at laying a proper egg.
She has laid small eggs with translucent membranes instead of hard shells. She has laid normal looking eggs with soft shells, and eggs with hard but misshapen shells. She has even laid eggs with no shell at all. Yuck.
And then there are the wind eggs. A wind egg is normal in appearance but has no yolk inside. I call them wind eggs because it is a widely accepted term for the phenomenon, and also because it carries a certain sense of mystery with it. But there is another common term for a no-yolker. The fart egg. I cannot quite bring myself to use this term. For one thing, it does not have any sense of mystery at all. Just the opposite. And of course I am a mature adult. “Sylvia has given us another wind egg,” I’ll say. Then one of the boys will correct me. “You mean she laid a fart egg, Dad!” The others giggle. My wife laughs. I am surrounded by immaturity.
Fine. Laugh at me. I tell them that there are also many terms for a chicken that cannot lay proper eggs. Casserole. Cacciatore. Cordon Bleu. The boys pretend I’m joking.
Now, to her credit, Sylvia is getting better at laying proper eggs. The kind you would not be afraid to give to a nice neighbor. Her other eggs we can give to neighbors we don’t like.
Searching for Yoldash 
Do you think this chicken needs more calcium in her diet? I have cockatiels and finches. The ones that don’t have enough calcium in their diets are the ones that lay soft eggs. Eventually the birds become egg-bound and die from eggs breaking inside them (I had that happen with two finches).
I don’t know what you have to do with chickens to increase their own calcium intake but with my birds I crush a whole boiled egg – shell and all – in a mortar and pestle. Making sure the shell is entirely crushed and mixed in well. Feed to bird. No more egg-binding and their eggs become hard pretty quickly.
Probably she needed more calcium, although they say that chickens often have trouble with their first few eggs and we have not seen this since she was just getting started. How often do you feed your birds eggs? I have never kept finches but I’m jealous. Used to have a cockatiel and three budgies.