Insect-eating bats like to live hidden away in holes in trees and in caves. When people set up a home, then bats will also come and live under the eaves so as to enjoy the "warmth" of home. But caves are still what they love best.
食蟲蝙蝠則喜歡居住在不見天日的樹洞、岩洞；在人類創造了「家」之後，也有蝙蝠搬進屋簷、磚瓦間，分享家庭「溫暖」，但洞穴則是蝙蝠數量最多之處。