Wow, I just saw an amazing thing. A Cooper Hawk, probably the same one that showed up last week, just perched on a telephone pole across the street in front of my yard, my flock is free ranging in my front yard. I heard the hawk calling and grabbed my non-lethal BB gun and a broom. I see that my weak BB can't make the shot so i shoo my flock in under the rose bushes, and just keep an eye on the hawk. Then I see a pair of grackles perch on the telephone wire right in front of my yard staring at the hawk. Then a couple mockingbirds joined them, then at some invisible signal the grackles, mockingbirds and some sparrows I didn't know where there all took off after the hawk and started dive bombing and chasing it together! I knew some birds would defend their nests from hawks but didn't know they would join forces with other species to do it! I almost feel sorry for the hawk, it had to dive into some dense tree cover to escape, the birds were too persistent to let the hawk gain altitude. But I don't feel so bad I'd let him make a meal of my flock. I think I'll buy some wild bird seed and feed the wild birds, low cost hawk defense, lol.
Just an FYI to those that are not familiar with the laws: killing and even harassing most bird species, including hawks/owls, is against the law. Just having the feathers from a hawk killed by a car is illegal. A neighbor can turn you in for shooting near a hawk even when you don't intend to kill it - that's harassment of the bird. Thus it is not a wise idea to discuss online anything that hints at the fact that you are using weapons/poisons against these predators, even if you don't get the shot anywhere near the birds. The fines can be quite large and jail time can even be given. Some things are just best left unsaid and sometimes what happens in the country at your house should stay there.