How high the grass and bird can fly

The grass and birds are not flying high, usually only about a few meters.This bird's flight ability is still good. Although it does not migrate, it will be a long distance in order to find food and find water to fly, and it can also capture insects during the flight.If you raise this kind of bird manually, you are usually locked in the cage. If you want to avoid flying away, you can consider cutting off the flying feather, but it is not meaningful. You can close the cage.