So far this year there’s been Red-winged Blackbird harassing Red-tailed Hawk, Red-winged Blackbird harassing American Crow, Red-winged Blackbird and American Crow co-harassing Red-tailed Hawk, and Red-winged Blackbird harassing Canada Goose (<– true story; sadly, no pictures, but the goose seemed rather offended.) Here, it’s three Common Grackle and one Red-winged Blackbird harassing a Red-tailed Hawk, high above Erie County, PA:
[* Editor’s note: “bird-on-bird violence” = exhibiting seasonal mating/territorial aggressiveness behavior. ‘No birds were harmed.’]