If we talk about how to catch a squirrel there are only 2 kinds of traps which can help us: an old-school snap trap and a live-catch trap. The first is dangerous and isn't humane, as you understand. If you don't want to kill these fluffy animals purchase the second type of trap. This is a strong metallic cage trap with a special mechanism to slam a door - read more about this type of traps in our complete guide!