I would think it would. Be sure and give the Poly-vi-Sol. Ducks need higher niacin (sound like an expert, huh? I'm just quoting what I've read multiple times). Anyway, my first two ducklings I hatched a few months ago, one had a funky leg and the vitamin made a HUGE difference. I didn't think it would be able to walk and you almost can't tell them apart now. I'd definitely use the sport's tape technique. It would be easier to get it's little ducky foot flat.I lost a poult and my little Lucky has curled toes. I am not even sure it can see. Do the band aid prosthesis work the same on duck feet?