Bats released on Holt Island!
Recently we released four bats on Holt Island. They were found grounded and dehydrated in St Ives, but the place they were found was not safe for release once they had been rehabilitated. As Holt Island was almost certainly in their hunting area it was decided to release them there. This video which was filmed originally in red light, shows the release (it is clearer in this black and white version). The noise you can hear right at the end as the bat takes off is the sound of the bat echolocating which was captured using a bat detector. Bats use echolocation to find their way around and find food in the dark. To echolocate, bats send out sound waves from the mouth or nose. When the sound waves hit an object they produce echoes. The echo bounces off the object and returns to the bats' ears. You can watch the VIDEO HERE.