July 16, 2005

Bat chatter

Filed under: Vacation 2005, Podcast, Audio recordings — Scott Redd @ 2:10 am

During the 53rd Esperanto Leagure for North America convention we visited the Congress Avenue bridge in downtown Austin, Texas to see the world famous colony of Mexican free-tailed bats emerge for their nightly feeding.

Before dusk, a chatter could be heard under the bridge. I am not certain, but I think the sound emanated from the bats, though I know that bat echolocation is at a frequency much higher than the human ear can hear.

Listen: MP3 - 0:45, 1 mb / 128kbps

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