New singers at Charles River Peninsula

Charles River Peninsula, originally uploaded by oehlkers.

My sonic map is changing. A bunch of new singers (or old birds, new songs). I don't know these ones (and the emerging leaves are preventing visual IDs). But they are worth sharing (and maybe someone out there knows who is singing).

The first has a very distinct musical song. I also heard it off of the boardwalk at Cutler Park this week. I'm guessing Eastern Meadowlark Baltimore Oriole.

The second has less of a tune, but much more free jazz energy--five or six runs in a row. I'm guessing House Wren.