Cormorants and shags
They are long-bodied, quite large-tailed birds, with broad wings and long necks, and a general shape somewhere between divers and geese. They have short, thick legs, showing a relationship to gannets by the fact that webs join all four toes. Their bills are thick and hooked at the tip, helping to grasp fish, which they catch by diving under water. Characteristic behaviour includes standing with wings held half open.