One for Keith here, Just recently we have been visited by some huge Hedgehogs in the gardens, as the hounds of hell are let out for their last toileting, all hell breaks loose, yodelling is putting it mildly, anyone would think something very large & very angry was at bay. They only do it with the Hedgehogs, no other animals encountered get this response, excepting just little of it, albeit a bit muted when straining following scent lines.