Is that her normal, everyday diet?a mixture of black oil sunflower seeds and oats in the morning. sometimes I have extra eggs so I make a scramble for them. or banana's. recently I read to give her plain greek yogurt so I gave her a dip from my finger and she ate it.
I'm sorry to say that that it an awful diet, get her on pelleted or crumble chicken feed asap and cut out the eggs.
That diet is very high in fat and incredibly low on protein and generally nutrition.