The bird is way too spooked right now, give it time to calm down and you may have some success in getting it towards the door when it calms down....just continue to leave the door open if you can.

If you have any bird seed or bread you can try leaving a small trail from the center of the basement to the door but again with the bird being spooked it will take some time.

You can also use a very light bed sheet instead of a net to throw over the bird and then very carefully pick up the bird and let it outside. --- Meg

Keep us posted.....