Large waterfowl, is well adapted for swimming and diving, as well as the legs of the diver shifted to the rear end of the body, like flippers at the seals. For this reason diver could not go on the ground and to get to the nests arranged on the shores of the reservoir, moving all fours. The wings of the loon short and narrow. Diver can take off only from the surface of the water, and before take off, the bird some time to slide on the surface. The flight quickly, but little maneuver. Loon nest on the tundra and waters of the north forest area, one (chernozobaya Diver) penetrates far to the south, nest on mountain lakes in Kazakhstan and southern Siberia. Winter at sea. Downy chicks monochrome, brown. Feed fish. In division one family: Gagarovye Gaviidae and one genus: Diver Gavia JR Forster, 1788 (Ivanov, Shtegman, 1978).

In addition to species listed in the List of species in fauna of Russia are:

Belosheynaya Diver Gavia pacifica Lawrence, 1858
Chernoklyuvaya Diver Gavia immer Brunnich, 1764

References.