Abnormal Duck Wing :  What to do and How to Prevent it. An abnormal duck wing, such as angel wing, twisted wing, and lazy wing, occur in waterfowl populations that are fed by humans. Not a lot of research has been undertaken on the syndrome. Abnormal duck wing occurrences do not affect the ducks ability to carry out normal duck production or activities such as eating, foraging, drinking and swimming. Angel Wing usually only occurs in one wing. The condition merely affects the appearance … [Read more...]