Grey Squirrels feast on hazelnuts by cracking the shell in half. You may also find pine cones that have been nibbled, leaving what looks like an apple core behind. Squirrels make a rough nest, called a 'drey', of twigs, leaves and strips of bark in the fork of a branch, high in the tree canopy.
Apart from rabbits and grey squirrels, mammals are probably one of the hardest things to spot on the reserve, however you can see plenty of evidence of where they have been.
If you spot tiny tracks of flattened grass, it is likely that a small mammal is passing through on a regular basis, and mole hills are a very common site.
Mammals play a vital role in maintaining our ecosystem. Small mammals sustain our birds of prey, and bats control insect numbers. We have 6 species of bat here at Sevenoaks, join one of our bat walks to find out more.
The otter and water vole indicate excellent water quality in our rivers, and thriving harvest mouse and hedgehog populations represent diverse, connected landscapes.
We have several mouse and shrew species present on the reserve which help support our owls. We also have carnivorous mammals in the form of stoats and weasels, but these are very secretive and you would be very lucky indeed to see one.
Lives along rivers, streams and ditches, around ponds and lakes and in marshes, reedbeds and areas of wet moorland. Look out for the signs of Water Voles such as burrows in the riverbank, often with a nibbled 'lawn' of grass around the entrance.
A small insectivorous mammal with tiny eyes and a large nose giving it keen sense of smell. Shrews live life in the fast lane, hectically snuffling through the undergrowth for their prey, which includes earthworms, spiders and chrysalises. Pygmy Shrews can be found in most habitats. Active by day and night, they are very territorial and aggressive.
the mole has stocky, wedge-shaped body with a short tail. Moles spend almost all their time underground, digging out tunnels with their spade-like front paws and hunting earthworms to eat. Moles are common and are often found in grassland and woodland edges. Although most people have never seen a mole, mole hills are a common sight.