Mites are small, spider-like creatures that can cause a great deal of discomfort to their hosts. One of the ways they attack is by burrowing into the base of the feathers, where they feast on the host's blood. This can lead to feather loss, anemia, and even death in severe cases. Mites are also known to carry diseases, which they can transmit to their hosts. In order to prevent an infestation, it is important to keep birdcages clean and disinfected on a regular basis. If mites are already present, there are a number of products available that can help to get rid of them. However, it is always best to consult with a veterinarian before using any type of treatment.