There will be few surprises here for anyone with a knowledge of British fauna.
Harvest Mouse might be one as their distrbution and status is poorly understood, though several years of searching for their used breeding nests has shown them to be present more often than not.
Roe Deer have recently moved in to the area and Muntjac have probably been present for many years but this small (introduced) nocturnal deer is rarely seen or traced. The only record is of one on a late-night moth-trapping session.
Mammalia - Mammals
InsectivoraMole Talpa europaea
Common Shrew Sorex araneus
ChiropteraCommon Pipistrelle Pipistrellus pipistrellus
LagomorphaRabbit Oryctolagus cuniculus
Brown Hare Lepus europaeus
RodentiaBank Vole Clethrionomys glareolus
Water Vole Arvicola terrestris
Harvest Mouse Micromys minutus
Brown Rat Rattus norvegicus
Grey Squirrel Sciurus carolinensis
CarnivoraRed Fox Vulpes vulpes
Badger Meles meles
Stoat Mustela erminea
Weasel Mustela nivalis
N. American Mink Mustela vison
ArtiodactylaRoe Deer Capreolus capreolus
Muntjac Muntiacus reevesi