If your little winged friend has lice, it will constantly fluff and pluck its feathers. They also exhibit aggressive behavior and are unable to feed their young babies, if any. These lice are especially active at night and feed by sucking your winged friend’s blood. Some bird species also show discoloration of the feathers. Although bathing the birds once a week is offered as a solution, the cage must be completely emptied regularly. Feeders, drinkers, and cage toys, if any, should be thoroughly disinfected. If we are going to be a home for a second little winged friend, our new guest must be checked by a veterinarian for diseases that may be contagious. Otherwise, you will have to keep the winged friends separately in quarantine for long periods of time and the necessary treatments will take longer. There is a possibility of infection from bird food you bought without knowing its quality, another bird settling in front of your window, a toy you bought, or a dirty bird cage.