Complex sentence: It was also confirmed that the Bare-legged Owl was distinct enough to warrant separation in its own genus-the Puerto Rican Screech-owl however is just a slightly aberrant "Megascops".
Split into simpler sentences: It was also confirmed that the Bare-legged Owl was distinct enough to warrant separation in its own genus. The Puerto Rican Screech-owl, however, is just a slightly aberrant "Megascops".