"So far they have caused more than US$63,000 (£32,000) worth of damage."
Well, if they are daft enough to replace US$63,000 (£32,000) worth of lightbulbs, they deserve everything they get! Why not go to the next building along and dump a massive pile of sunflower seeds on its roof. Damn sight cheaper than hiring 2 birds and a handler for weeks on end, and that way the eagle and falcon can go home.