Strangely your question is not silly at all. In most birds with a few exceptions, males have two testes and females have only one ovary. In rare occasions females may develop a small testi because of a hormone imbalance. These hens may begin to crow and this condition does not impede the laying of eggs, so it would be easy for someone to think their male bird is laying eggs. I am not familiar with confirmed incidences in quail, but it is commonly reported in chickens and is known in wild populations of other types of birds. If you have a crowing button quail that lays eggs, it might be this situation.