יַנְשׁוּףyanshûwph

an unclean (acquatic) bird; probably the heron (perhaps from its blowing cry, or because the nightheron is meant ))

Pronunciation: yan-shoof' · Hebrew/Aramaic (Old Testament) · H3244

Meanings

a bird, unclean, Probably a kind of owl (Isaiah 34:11; Leviticus 11:17; Deuteronomy 14:16)

Same root

נָשַׁףnâshaph · H5398to breeze, i.e. blow up fresh (as the wind)
נֶשֶׁףnesheph · H5399properly, a breeze, i.e. (by implication) dusk (when the evening breeze prevails)

Where it appears

Appears 3 times in the Bible.

Leviticus 11:17 the little owl, the cormorant, the great owl,
Deuteronomy 14:16 the little owl, the great owl, the barn owl,
Isaiah 34:11 It will be haunted by the desert owl and the screech owl, the great owl and the raven. For God will measure that land carefully; he will measure it for chaos and destruction.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).