We had an experience this summer with a Mockingbird singing all night.
We stopped in a town along the St Johns River to visit with a niece who lived there.
We parked our RV overnight (with permission) in a Wynn Dixie parking lot.
We were under a street lamp along the edge, next to a rather large Crepe Myrtle.
No sooner than we shut our eyes, this fellow started up with song.
He was quite remarkable. I had never heard so many riffs and variations from a single bird.
While feeling a bit irate with him keeping me awake, I was fascinated.
I remember from when I was a youngster in Florida, Mockingbirds could imitated the audible part of an Alligator's mating bellow.