Osprey

[os-pree] /ˈɒs pri/

noun, plural ospreys.
1.
Also called fish hawk. a large hawk, Pandion haliaetus, that feeds on fish.
2.
a plume for trimming hats.
/ˈɒsprɪ; -preɪ/
noun
1.
a large broad-winged fish-eating diurnal bird of prey, Pandion haliaetus, with a dark back and whitish head and underparts: family Pandioridae Often called (US and Canadian) fish hawk
2.
any of the feathers of various other birds, used esp as trimming for hats
n.

fishing hawk, mid-15c., from Anglo-French ospriet, from Medieval Latin avis prede “bird of prey,” from Latin avis praedæ, a generic term apparently confused with this specific bird in Old French on its similarity to ossifrage.

Heb. ‘ozniyyah, an unclean bird according to the Mosaic law (Lev. 11:13; Deut. 14:12); the fish-eating eagle (Pandion haliaetus); one of the lesser eagles. But the Hebrew word may be taken to denote the short-toed eagle (Circaetus gallicus of Southern Europe), one of the most abundant of the eagle tribe found in Palestine.