Is the black migrant bird?

The provinces and cities in the south are winter migratory birds, and other places belong to birds.The so -called winter migratory birds are the winter in the south in the winter, flying back to the north in the spring, while the birds are active in a region throughout the year, and they rarely migrate.This kind of bird has a certain patience on low temperature, but it has a great impact on high temperature. Therefore, if you raise manually, you must pay attention to the summer in summer.