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Gunnersbury Park Museum has recently reopened after refurbishment, and while I was browsing the website I came across a bat walk. I signed up to go on the July walk in the hope of coming across a few bats.

Bat detector

Bat detector

On meeting at the park, we were handed bat detectors, which were quite exciting, designed to pick up bat squeaks at high frequencies. Different species have different frequencies so you have to move the dial around to make sure you pick up anything that might be out there.

We headed down to the lake and at first there was no sign of any bat activity, even though we walked right round the lake and were there for ages. Eventually, however, as it grew dusk, some bats began to come out of hiding and we saw them swooping around, aided by the bat detectors which picked up their noise almost before we saw them.


Waiting for bats

I never thought that standing by the side of a lake in the dark on a Friday night would be such fun, but it really was. There is another walk taking place in September if you fancy giving it a go.