A sea eagle is any of the birds of prey

Bird of prey

Birds of prey are birds that hunt for food primarily on the wing, using their keen senses, especially vision. They are defined as birds that primarily hunt vertebrates, including other birds. Their talons and beaks tend to be relatively large, powerful and adapted for tearing and/or piercing flesh....

 in the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Haliaeetus in the bird of prey

Bird of prey

Birds of prey are birds that hunt for food primarily on the wing, using their keen senses, especially vision. They are defined as birds that primarily hunt vertebrates, including other birds. Their talons and beaks tend to be relatively large, powerful and adapted for tearing and/or piercing flesh....

 family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Accipitridae

Accipitridae

The Accipitridae, one of the two major families within the order Accipitriformes , are a family of small to large birds with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a...

.

Sea eagles vary in size, from the Sanford's Fish Eagle averaging 2–2.7 kg to the huge Steller's Sea Eagle

Steller's Sea Eagle

The Steller's Sea Eagle, Haliaeetus pelagicus, is a large bird of prey in the family Accipitridae. It lives in coastal northeastern Asia and mainly preys on fish. It is, on average, the heaviest eagle in the world, at about , but often lags behind the Harpy Eagle and Philippine Eagle in other...

 weighing up to 9 kg. At up to 6.9 kg, the White-tailed Eagle is the largest eagle in Europe. Bald Eagles can weigh up to 6.3 kg, making them the largest eagle native to North America. The White-bellied Sea Eagle

White-bellied Sea Eagle

The White-bellied Sea Eagle , also known as the White-breasted Sea Eagle, is a large diurnal bird of prey in the family Accipitridae. Originally described by Johann Friedrich Gmelin in 1788, it is closely related to Sanford's Sea Eagle of the Solomon Islands, and the two are considered a superspecies...

 can weigh up to 3.4 kg.