These things took over about a quarter mile of my running route. They attack me and my dogs if we get close and follow me, perching on signs the whole way.
I'm getting PTSD and have changed my route but hoping to find out how long they'll be around for.
Merlin is the best! It will also help you narrow down the options based on a few characteristics such as color, size, location and activity. This definitely sounds like mocking bird behavior!