Here's a curiosity from our walk at Five Rivers on Saturday.
We passed by here:
which apart from looking rather nice, sounded...well...a bit like a triffid invasion really. You can hear a snippet by listening to this video:
I'm assuming - since we probably would have seen deadly eight feet tall walking plants - that they were really frogs of some sort. All we saw was a goose and a painted turtle, and I don't think either of them was responsible.