Suliformes

Suliformes is an order of aquatic birds. In the order, there are adaptations of the feet, which make them good at swimming: there's a thin layer of skin between the toes. 

The order contains the following families:
Sulidae, the gannets and boobies
Fregatidae, the Frigatebirds
Phalacrocoracidae, the Cormorants.
Anhingidae, commonly known as darters.

Category:Seabirds