How do bats see humans?

Bats see humans using a combination of vision, echolocation, and other senses, though their vision is different from humans and varies by species. Most bats have eyes and can see, contrary to the myth that bats are blind, but they have small eyes adapted for low light. Insect-eating bats that use echolocation have relatively small eyes with vision adapted for dim light and movement detection rather than detailed color vision, and they see humans as large moving objects to avoid, especially at night when they are hunting. They rely more on echolocation than vision to navigate, emitting high-pitched sounds and listening to echoes to detect obstacles including humans and to avoid collisions. Fruit bats and flying foxes, which do not use echolocation as much, have larger eyes with better vision, including good night vision and some color vision, and they see humans more clearly, similar to other mammals. Bats can also sense humans through hearing and smell, detecting footsteps and body odor. At night, bats around houses may detect humans by movement and sound and will generally steer clear, as they see humans as potential predators. In captivity, bats that interact frequently with humans can learn to recognize familiar people by sight, sound, and scent and show less fear toward them. So wild bats see humans as large moving objects to avoid using a combination of dim-light vision and echolocation, not detailed facial recognition like humans do.