Before echolocation was discovered, Lazzaro Spallanzani ran several experiments on bats to figure out how they could fly so well in the dark. Including making little bat blindfolds. After they were still able to fly just fine, he gouged their eyes out with a needle.

He concluded that bats don’t need to see to navigate.

You’re in the right place, my friend! Feel free to search this community by “bat fact” and you will see plenty more.