White-bellied sea eagle 
(Đại bàng biển bụng trắng, Icthyophaga leucogaster), also known as the white-breasted sea eagle
Also Haliaeetus leucogaster.

The white-bellied sea eagle (Icthyophaga leucogaster), also known as the white-breasted sea eagle, is a large diurnal bird of prey in the family Accipitridae.

The bird is found from India and Sri Lanka through Southeast Asia to Australia on coasts and major waterways.

Accipitridae from Latin accipiter/accipitri- "hawk".
ichthyaetus: Greek: ikhthus fish; aetos eagle.
Ichthyophaga Greek ikhthuophagos fish-eating (ikhthus: fish; -phagos -eating;  phagein to eat or "devour").