Andy Rabin wrote: >Any idea what other sparrow > might have a bubbly wren-like song? > > Hi Andy, although Lincoln's do a wren-like song the other probable candidate is Song sparrow. Songs do many variations and I have frequently heard a disjointed bubbling and trilling. I spent many years tracking down Song after Song sparrow thinking I had "rare" stuff when I heard those wierd bubbling songs. Bonnie