 Some insects and dragonfly to be seen on the river include banded demoiselle, emerald damselfly, scarce emerald damselfly, large red damselfly, red-eyed damselfly, small red-eyed damselfly, azure damselfly, common blue damselfly, blue-tailed damselfly, migrant hawker, southern hawker, brown hawker, emperor dragonfly, four-spotted chaser, broad-bodied chaser, black-tailed skimmer, keeled skimmer, common darter, ruddy darter, common hawker, Norfolk hawker, hairy dragonfly, red-veined darter, yellow-winged darter, black darter and the variable damselfly.Small mammals seen in or near the river include hedgehog, mole, common shrew, pygmy shrew, water shrew, noctule bat, pipistrelle bat, Natterer’s bat, Daubenton’s bat, rabbits, brown hares, grey squirrel, bank vole, short-tailed field vole, water vole, wood mouse, house mouse and the brown rat.Red deer, roe deer, muntjac, red fox, badger, otter, stoat, weasel and feral cats.