Aquatic animals include for example the seabirds, such as gulls (family Laridae), pelicans (family Pelecanidae), and albatrosses (family Diomedeidae), and most of the Anseriformes (ducks, swans and geese).
However, recent research and fossil finds such as Vegavis show that the Galliformes (Pheasants, Grouse and relatives), and Anseriformes (ducks, geese) are still not fully resolved.
If valid, this would mean that there are three groups of giant basal anseriformes, in chronological order of divergence first the gastornids (relatives of Gastornis) then Brontornis and finally the mihirungs of Australia.
The existing avifauna can be grouped into podicipediformes, pelecaniformes, phoenicopteriformes, falconiformes, anseriformes, galliformes, gruiformes, charadriiformes, columbiformes, cuculiformes, strigiformes, caprimulgiformes, apodiformes, coraciiformes, piciformes, passeriformes. 39 species are included in the Red Book of Armenia.