Can the gray swallow wings be cut?

The gray swallows can be cut, but because it is raised in cage, it will not be released, so there is no need to cut.This bird comes from Africa and is raised in the south and other places. Usually you can feed it for some golden birds. During the reproduction, animal feed supplements need to be added.It should be noted that the male birds will attack each other, so they need to be raised separately.In addition, keep warm when wintering to prevent birds from frozen.