I know this would vary from locale to locale, but, presumably, there are some animals that do not require a permit to kill (mice in mouse traps, for example). How does this work? Is there a list of “always OK to kill” species?
Edit: Thank you everybody for the replies!
You just gotta add a sign that says “Warning: trapping wild animals without a license is illegal. This trap is for feral cats only. Any wild animals found in this trap will be shot on sight.”