It's gray out.  I'm walking at a casual pace, no real energy in it, I'm a bit tired.  Suddenly, a flash of blue then white in my vision, a treasure that catches my full attention for the slightest moment and then circles back behind me and into the sky, plying the air for insects or perhaps for the sheer joy of flying: a tree swallow.  I slow down and listen as I near the snag where I had twice seen the pileated woodpecker.  There is no "thunk" as a beak is driven into dead wood in search of insects.  As I approach the snag I look in the water, no tell-tale wood chips floating at the base.  It isn't here, hasn't been here today.  I continue over the bridge and into the Fill.  But for the high green grasses, abundance of flowers and leafed-out trees,  one wouldn't guess that it was almost the start of summer.  "Juneary" is the term coined by a local TV station.  It's cold and breezy.  Most of the waterfowl are elsewhere, not here in the ponds. The grass is so high, I am continually stumbling upon hidden red-wing blackbirds and other songbirds as I walk along the pathway, the sudden encounters startle all of us.  At the main pond, there are some mallards, and gadwalls on the opposite shore, and only the myriad of swirling swallows, both barn and tree, occupy the pond surface.  I don't find the sora or the rails that I  have seen lately.  I only saw the sora the one time, the next time I looked I ran across a family of Virginia rails, two adults and a chick (I think, really difficult to glimpse.)  The first adult ran off to hide on the opposite mud bank while making a sort of snorting noise.  I read that this is the main vocalization at this time of year.  I began to second guess my id of the sora thinking that it was probably one of the rails, but upon further reading on bird sites and books, I remembered that my id was based on the behavior and the sootiness of the bird.  It flicked it's tail like a perturbed green heron, and that is a sora behavior, also the rails I saw were much more chesnut in color and their beaks long and red, while the sora's is described as shorter and yellow. One guide said that they are often found in the same area, and I think perhaps the sora was only there as a stopover; my initial thought was that it was migrating.  The tall brown duck's babies are fully feathered now, no longer yellow, tripled in size from last I saw them about a week or so ago.  It is too cold out I suppose, for the turtles or the garter snakes and they remain out of sight. I pick up my pace to get back to work by the end of my lunch break.  As I leave the Fill, I am surrounded by song, but no further sightings.