Is it normal for a bird to shed?

Yes, it is normal for birds to molt and lose their feathers. Molting is the process by which birds replace their old feathers with new ones. There are two main types of molts, the annual molt and the partial molt. The annual molt occurs once a year, usually in the fall, and involves the bird losing all of its flight feathers simultaneously. The partial molt occurs more often, usually two to three times a year, and involves the bird losing and replacing fewer feathers at a time.