The term GREEN CORMORANT is a type of bird, also known as a shag. The four-letter word for this bird is SHAG. The green cormorant is a species of cormorant found in the coastal regions of the eastern Atlantic Ocean and the Mediterranean Sea. It is a medium-sized bird with a long neck and a long, hooked bill. Its plumage is mainly dark green, with a white throat and belly. It feeds on fish, crustaceans, and other aquatic animals.