DDU what do you do with yours when they stop laying? You can say, I know you're supposed to be able to chop their heads off

Mr Fox ensures that I don't have to face that problem   :insert cranky fox hating face here:

I don't have a number / space issue so I will just let mine live out their lives with the others.  If you're asking what you should do just put a "free" ad onto the local classifieds and someone will come and take them.