I think I would try that if just disturbing them with a broom or something did not work.
I really like the idea of training the wild birds to eat them! Just mess up their nest so the birds can get at them and they may learn to tear into the nests on their own.
Perfect The Dwelling Land!
Heroic work plunger man. Please allow me to introduce you to this tiny ad:
grow your own garden and build your own home, in Montana, for free-ish