Serenaded by a male voice choir – of toads

Red Rocks Marsh, Wirral 'I have front row seats for the natterjack toad, the loudest amphibian in Europe'

There is one last highlighter-pink line in the sky when I take the path down through the red rocks that give this area its name. They are sandstone, worn smooth by time and tide. The sea is keeping its distance, the tide is out, but that familiar coastal tang is in the air mixing with the peppery scent of sundried grass from the dunes.

Colour fades to monochrome as the light drains out of the day and my eyes become more attuned to movement. A small spring contracts and expands below to my left. It is a toad and I can just make out the pattern of black bumps speckling its back. This is one of the few places natterjack toads can be found in the UK but, while attractive, this is not one of them: it lacks the distinguishing yellow stripe along its spine.