My 12 yearold feed and water the ducks today and I did not go up untill tonight to clean the pet taxi and feed and water. I noticed one of my pekins was missing and looked behind the water bowl. She was laying down can hardly move, will not stand up and on the right side of her neck and its all swelled out. Its pretty hard. Does anyone know what this is and how to treat? I do not think I will sleep tonight untill I can fiqure it out. She was up and running around yesterday and my daughter says she was fine this am. It looked like may'be the plastic gallon waterer got on her legs but why would her nexck swell?

Thanks

Patricia