The marsh in Michigan Hollow (Town Of Danby, not Spencer) was covered in a thin skin of ice this morning, before the sun hit it. An American Bittern was pumping loudly. I also heard a single song from a Pied-billed Grebe, and watched a male Harrier surveying his territory. Lots of Wood Ducks, Mallards and Canada Geese, a pair of Hooded Mergansers, plenty of Swamp Sparrows, etcetera. No rails this morning, though I had Virginia Rails there a few days ago.