For the last three nights and days I have heard something akin to a very old rusty wheelbarrow being pushed along coming from beneath a bush on the edge of my garden pond. It sounds like the male mating call of a frog or a toad, which one I don’t know for I haven’t seen it yet, despite my efforts getting on hands and knees peering under the bush. About four days ago I discovered a toad under a step, which can be seen in the images below, and I thought he might be the one making all the noise, if it was in fact a he. Yet when I lifted the loose slab to the step this morning I found not one toad, but two hiding under there. I thought aha! here we have them, a courting couple, yet as I observed them the rusty wheelbarrow noise started up again by the pond! So I guess I am still none the wiser at present as to what is making all the noise.