Is there a jade birdcage with a bottom better?

Jade birdcage is bottomless. Judging from the relevant public information, the bluebird is a very beautiful and active bird, and it is already a pet bird that many people like to keep. When keeping them in cages and making artificial nests for them, it is best to put them in the middle and upper parts of cages, so that they can have a larger area in cages. It is very bad to move at the bottom of the cage. The excrement discharged by the bluebird will make the nest very dirty.