～羽
～わ · ～wa · JLPT N2 · noun
rabbit
🐦🐇 羽 = feather, wing: birds are counted by their wings
羽 on its own means feather or wing, so a bird counts as one 羽. Rabbits share this counter. A popular folk story says monks classed rabbits as birds so they could eat them, and their long ears were likened to wings.