Description:
The most common cormorant in china is the great cormorant (Phalacrocorax carbo), also called the black shag. The cormorant is such a successful fisher because, unlike other birds, they have no oil glands under their feathers. Thus, their feathers are water-penetrable, and water bubbles can't accumulate therein - a trait which helps them dive and swim fast.
Birds that secrete oil create a barrier against cold, since the oil keeps the feathers from absorbing water and thus cooling the body. To compensate for this lack of wing insulation, the cormorant has a layer of fat under the skin, which provides all the insulation it needs. Its marine nutrition provides the bird with all the fat needed for this layer of insulation.
PRINTED CANVAS:
This photo was taken in a high iso and therefore it has a painting effect.
