The oaks on the Common, many of which are around a hundred years old, host many hole-nesting birds which rely on this sort of habitat.
The green tortrix moth caterpillars, which devour the spring leaves of the oaks, ensure a wide variety of birds have plenty to feed to their young.
In the Spring, the Common is alive with birdlife. A cacophony of bird song will greet the morning visitor to the site.
The whistling call of the nuthatch can be noted as it scuttles down, as well as up tree trunks and branches. The treecreeper, which is also found here, goes almost exclusively upwards on trees in a meandering helix around the trunk, before flying down to the bottom of another tree.
16 species of bird have been recorded nesting and rearing their young on the Common. Importantly, the Common is home to all three species of woodpecker to be found all year round in the UK.
A recent survey of the botanical species on the Common listed 73 species.