Rashi on Genesis 7:14/רש"י על בראשית ז׳:י״ד

1צפור כל כנף [EVERY] BIRD OF EVERY KIND — The word צפור is in the construct state, viz.. birds of every kind of wing, thus including locusts (Chullin 139b). The word כנף means “wingfeather”, as (Leviticus 1:17) “He shall rend it by the wings thereof”, for even its feathers were offered as a sacrifice. Also here, the meaning is, birds with any kind of semblance of wing.