Air rifles are great for shooting pigeons in barns and enclosed spaces. This is pest elimination, not hunting.
Just came in from nailing all 7 in a neighbors quonset. Big storage quonset that handles Combines and large tractors. Had nailed three the other day while there shooting ground squirrels in a field where he grazes some of his cattle as they wean calves from the mothers. Getting the rest of these pigeons was "Night Work".
Go in with a good light, in this case a Fenix LD44 flashlight. Using the TX200 MkIII I would light up a pigeon, shoot and then turn off the light to reload. Successfuly dispatched all 7 pigeons and his dogs had a field day with the snacks.
Yes, it is like shooting fish in a barrel. The pellet rifle allows shooting without the worry of poking holes in the quonset and is much more effective than a .22 rifle with rat shot. The light and scope makes for accurate shooting - as in "one shot, one kill". Only downside is the finicky loading with the TX 200 rifles in the dark.
Accuracy of the rifle at 20 to 60 foot distances is good and the light bright enough to light up the whole place.
In the dark the pigeons don't like flying. Once hit they may launch but don't go far and the dogs finish the job.
Bonus is the neighbor even pays a bit for the shooting. Getting rid of them makes for cleaner machinery. No one likes Pigeon &^^& on their stuff.
Next up - a few raccoons.