Complex sentence: The bill was about long, less curved than in the hoopoe starling and proportionally a bit deeper, and seems to have had larger nostrils, with the nostril openings in the bone in length.
Split into simpler sentences: The bill was about long, less curved and proportionally a bit deeper than in the hoopoe starling. It also seems to have had larger nostrils, with the nostril openings in the bone being in length.