Pigeonhouses should be built in high places. Pigeons are birds. I don't feel safe after landing, and I certainly don't dare to fall down in a low pigeon house.
3. Pigeons should use blue colored steel tiles on the roof to prevent pigeons from falling down.
4. Pigeonhouses should use jumping cages.
5. Leave a few more entrances in the pigeon house, and the entrances must be wide to prevent the male pigeons in the shed from interfering with the pigeons entering the shed. Leave a few more entrances, you can enter up and down, so that pigeons have a higher chance of entering the cage.
6. Put a sink, a trough and fake corn at the jumping cage of the pigeon house and stick them on the roof to attract tired pigeons to fall.