Some birds are like me. They find a perch where they have a good view of the world around them, and then they sit and watch. They change perches when it's necessary or convenient, but sometimes they don't move for what must seem like an eternity in bird time.
Mockingbirds are like that.
They have so many songs in their heads that if they get bored, they just sing. I don't know where it came from, but I couldn't get rid of it. Other birds live the way I wish I could, always on the wing, swooping and soaring. If I were a bird, I think I might like to be a swallow. I'm so comfortable in my routine that I rarely take flight spontaneously.