Northern Mockingbirds are very popular songbird in US. I don’t know whether they have their own song or don’t have, but they sing endlessly complicated song which is composed with other songbirds’ songs.
And I think Northern Mockingbirds are a little bit strong-minded birds because I often saw their chasing not only other similar birds but also hawks, squirrels even cats.
I took the first picture around middle of April. At that time this Northern Mockingbird was busy for feeding their chicks.
And the second and third photos were taken on beginning October of last year.