What cage is good for gray swallows

Gray Swallow should be raised with an iron cage of 60*40*40.The length of this bird is about 12.5 cm. Although there are many varieties, the method of breeding is similar. Daily feeding mainly uses seeds mixed feed. It can also be fed for some Ghana.The mother bird lays eggs, and it is also helpful to the development of young birds.In addition, pay attention to keep warm in winter.