Mirrors can have some weird effects on birds, they'll get into obsessive or aggressive behaviors with them, I'd search around about that.
That's parrot advice though, I can't say about doves.
Really I'd just look out for a bigger cage on local marketplaces/ buy one off of Amazon and give them some simple toys. Check out r/PetDoves, there's a number of threads and examples of people's setups there.
Mirrors can have some weird effects on birds, they'll get into obsessive or aggressive behaviors with them, I'd search around about that.
That's parrot advice though, I can't say about doves.
Really I'd just look out for a bigger cage on local marketplaces/ buy one off of Amazon and give them some simple toys. Check out r/PetDoves, there's a number of threads and examples of people's setups there.