Reply #4: Bullshit, and i can prove it:

[ret5hd]

Most years in our city tens of thousands of grackles converge on trees in the downtown area. Loud and messy, the merchants get the city to try to get the birds to move on, an exercise in futility as the birds "move on" when they are damn good and ready. The city hires crews to go around and scare the birds with noises, sirens, etc. Even shotgun "blanks" have been used.

Not once has there been a bird kill like this, even tho they are purposely trying to scare the birds from their night time roosting places.