In Norfolk we have two seals resident, the grey seal (
Halichoerus grypus) and harbour seal (
Phoca vitulina), which is also known as the common seal.
The grey seal can be distinguished from the harbour seal by its larger size and longer head with a sloping 'roman nose' profile. Looking straight on, their nostrils are parallel, rather than V-shaped as in harbour seals. Mainly grey in colour, the unique pattern of darker blotches and spots can be used to identify individuals.
The harbour seal has a distinct forehead and short muzzle similar to a dog. Harbour seals have V-shaped nostrils. They are very variable in colour, from blonde to black, but generally grey with dark spots.
Picture by Elizabeth Dack