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Re: Bat roost at Congaree National Park, South Carolina USA

Subject: Re: Bat roost at Congaree National Park, South Carolina USA
From: "n58bn" n58bn
Date: Mon Aug 21, 2006 3:06 pm (PDT)
Robin

That is a nice recording. What you are hearing are the social calls
and the movement of the bats. The colony of Tadarida brasiliensis
Brazilian / Mexican free-tailed bat that live outside our house have
such a animated conversation when they return home in the morning that
you can hear them in the house.

The frequencies that we can hear do not work well for echolocation.
When echo locating Myotis austroriparius will typically be using the
40 to 70 kHz range.

Ralph









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