I’m not sure what bird this is. My Merlin bird identifier listed it either as a brewers blackbird, a brown-headed cowbird, or a rusty blackbird. Whatever it is, it was having a good time frolicking up and down this log.
Maralee
The world as I see it
Through My Lens 
Reminds me of one of those guards at Buckingham Palace, marching back and forth on his log like that!
It does look like that. 🙂