Fucking birds!

So, after a year of neglect, we've had numerous pigeons roost on our balcony, trash accumulate, etc... But we've finally cleaned it all up!

But the pigeons are still coming back... We've tried killing them off with paintballs and pellet rifles, but the stupid birds keep deciding to come to our balcony. Is there a more effective (and if possible, just as satisfying) way to solve this problem?

Jam it back in, in the dark.

One of my classmates tried that, but the problem is, that even with the utter stupidity of the birds, they get used to seeing a perched owl in the same spot that doesn't move

There's nowhere I can't reach.

but see, the beauty of the paintballs/pellets were that we'd hit the birds on the balcony, and they'd either be too stunned, or too wounded to start flying before falling the 14 stories to the ground.

This thing is sticky, and I don't like it. I don't appreciate it.

But then you have to deal with the bird carcasses.

I am a dolphin, do you want me on your body?

Too much work - plus we'll be using the balcony quite often from now on.

I was speaking idiomatically.