The glaucous gull is a large pale gull that has white tips on the wings. Juveniles are more of a creamy white or biscuit coloured depending on their age, but all ages have pale tips on the wings.
Glaucous gulls are bigger and bulkier than herring gulls. They have a bigger beak, fiercer expression and more of a square head, than the extremely similar, but smaller identical relative, the Icelandic gull.
Their diets mainly consist of shellfish, carrion and scavenging for scraps.
Named in honour of the French naturalist and ornithologist, Jean Victor Audouin (1797 – 1841) the Audouin’s gull is one of the world’s rarest and is limited in the main to regions within and surrounding the Mediterranean Sea.
Terns are water birds from the family Sternidae and are expert fish catchers. There are generally considered to be forty five separate species of terns worldwide. Generally smaller than gulls but with long tails, thin bodies and short legs, they are long distance migrants.
There are four sub-species of the common gull with the European variant being the nominate. The other three are the Russian, Kamchatka and American, which are all predominantly confined to the geographical region attributed by their name. There are subtle differences in plumage and overall size of bird between sub-species.
The title of Black-headed Gull is rather a misnomer for this bird as its head is not black but a dark brown colour and only in adult birds during the breeding season. It is not present during the winter months or in other plumages. Unlike many gulls it is not restricted to coastal regions and is widespread inland in both rural and urban areas.
A graceful tern, easily distinguishable in their black summer plumage, which they're named after.
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