Fan vent bird removal

Hello all long time creeper first time posting. So here is the deal. Have been getting a few bird calls to remove birds from a 3 in uncovered exhaust fan tubing. 2 that I have came up against neither had access to it from the attic and neither could be reached from removing the actual fan or from outside. What tools can be used to remove the nest and occupants. Any experiences?

I often used something similar to the Bird Nest Rooter- https://www.wildlifecontrolsupplies.com/animal/WCSBNRTR.html to remove starling and sparrow nests from exhaust fan tubing.

Use a $15.00 drain cleaner for Home Depot