What's wrong with pearl bird feathers fluffy

Most of the pearl bird feathers are mostly caused by cold climate.This bird can overwinter in an environment above 10 ° C. It can usually be placed indoors in the south, while the north needs to cover it with cage cloth to keep warm, and at the same time, it must be placed in a windproof place.In addition, feeding needs to be added in winter. As a constant temperature, in order to fight low temperature, it needs to eat more things.It is best to use warm water, but bathing with cold water, so that it is not easy to catch a cold.