A .177 pellet bounces off the damn things. And they drive away the purple martins that people put birdhouses out for.
“A .177 pellet bounces off the damn things.”
Lol! A number of years ago, I had just planted a new pasture of about a couple acres. It only took about a day before the grackles discovered it. They came in by the thousands! You’re correct that pellets just bounced right off them. Even number 7 shot out of a .410 bounced off them at the distance it was fired from. However, there were so many that if one waited until 2 or 3 were lined up in a row, a .22 would penetrate all three. Even after the noise of the shot scared them off, they’d all fly back in about a minute. Quite the pest!