Can bats make sound (cry) that humans can hear? Woke up sounded high pitch like fire alarm. Bat in my room?

Question

Have had some history of some transient bats coming through house. None have tested positive for rabies. Am I just overly concerned about this issue? After I heard sound I swatted near my ear did not feel anything touch me. Also I turned on bedroom lights and did not see any presence of a bat. Mainly I am just wondering if this high pitch ringing type sound similar to a fire alarm is the type of sound that could have come from any bat. Most likely the type of bat for this area in a home would be little or big brown bat. Thanks.

Answer 1

These sites may be of some help...

http://www.batworld.org/main/main.html

http://www.batcon.org/home/default.asp

http://www.batconservation.org/

Answer 2

I woke up to a crazy sound in my bedroom once, it sounded like a really loud static screeching noise. My cats were going crazy. We turned the light on and my curtain was moving. I moved the curtain back and a bat was there.

It flew around the room a lot before we caught it and let it outside. But yes, they do make a sound humans can hear, and it sounds like a very loud terrible screeching but not like a "ringing" sound. That could be something else.

Answer 3

Bats can squeak in the audible range as wall as their hypersonic echolocation ability