Quiz time: What animal?

[DaveC426913]

Man I love being surprised by nature.

Name this South American FLYING animal that lives in colonies in CAVES, emerges at night in search of food, has excellent night vision and uses ECHOLOCATION to navigate.

Spoiler: Hint 1

Not a mammal.

Spoiler: Hint 2

Also not an insect.

Spoiler: Hint 3

Bigger than an insect or bat.

 

[256bits]

Darn,
My first guess was going to be Batman.

 

[Hornbein]

Social owls?

 

[Hill]

The search on the Internet was quite short.

Spoiler

https://en.wikipedia.org/wiki/Oilbird