I have a new bird living by my creek this summer. Its nesting in low (8-12’ ) brush. This bird is slightly bigger than a sparrow, sits very upright on the branch, is quite drab colored. I’m never able to see it well as it stays in the brush but it looks to be mottled coloring similar to a wren. The song is amazing!! A long set of varying trills and tweets. Anyone got ideas I could look up?