Osprey, also called sea hawk, river hawk, and fish hawk

(Ó cá, Pandion haliaetus)

The osprey, also called sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey of the family Pandionidae of the order Accipitriformes.

Accipitriformes, Accipitridae from Latin accipiter/accipitri- "hawk", and Neo-Latin -formes "having the form of".
Pandionidae, Pandion: from Pandíōn, the mythical Greek king of Athens and grandfather of Theseus, Pandion II.
The species name haliaetus (Latin: haliaeetus)comes from Greek haliáetos "sea-eagle" (also haliaietos) from the combining form - hali- of  hals "sea" and  aetos, "eagle".