Last spring at about this same time, I had a flock of Common Grackles descend on my bird feeders. While I think they are smart birds with subtly beautiful feathers, I really don’t like their behavior at the feeders. They typically seem to arrive in a group and aggressively go at the feeders, excluding the regulars. They are very persistent about going after what they want and will continue to hang around as long as they can get it. So this spring, I again had to make adjustments to get them to calm down.