Ravens harass the hell out of them. It’s fun to watch.
When I worked overlooking the harbor in Auke Bay, I watched the ones that had a nest leave their tree and slowly swoop across the harbor flying low over the outside dock. The gulls would all take off, no doubt baldy was looking for a sick/injured one.
The Northwestern crows would always gather along the dock area to pick nets and scraps, and up near our offices in winter to get after the mountain ash berries.
One day, a bunch of cawing going on and I knew the crows were mobbing something. Had to work my way down the hallway looking out coworkers windows to find out just where the majority of the hoopla was happening. Got to the end office, window looked out on a big spruce there. Bunch of crows scattered around in the branches and there on one of the bigger ones was baldy, crow under his foot pinned to the branch, calmly plucking away at feathers and eating crow.
I was glad something finally got one of those noisy fuggers!