"Cats kill birds. It's what they do."

I ran across another blog with a flame war going on about feral cats. I've done my share of verbal and written fighting on the subject, but managed to avoid that particular war. I'll only say here the experts... (and by "experts" I'm not refering to the TNR enthusiasts) expert biologists will tell you domestic cats are killing machines. They have no more a niche in our ecology than do Burmese Pythons.