This is a body feather as there is a downy tuft at its base. The inner vanes are irridescent. The feather matches in appearance breast feathers of Greater Roadrunner. The habitat is appropriate. Hopefully one will be seen at this location soon.
Picked this up on one of my cameras. We live in the chaparral in Malibu about 800 fr above sea level. I’ve never seen anything like this before and can’t seem to I’d it.