I have never before seen so many warblers shoulder to shoulder, and almost all of these birds were foraging high in the canopy throughout the day except during the brief early afternoon 'deluges' during which they bathed. They would begin dropping from the canopy in one downpour, bathe for a handful of minutes, then leave for the remainder of the day.
For 2012 I have so far opted not to create a water feature primarily out of laziness (and not wanting to spend $50+ to get the needed vinyl liner from Lowe's- my old one has holes). But now realizing that I need OVEN, GWWA, WIWA, CAWA, YBFL, and several other difficult-to-find passerines as they return in late August, I decided it was a must to get one ready by patching up the old one with duct tape. So, here it is:
This yard lacks a good brushpile, but fortunately the bath is surrounded by weeds and vines 2-3 feet high. These are connected in turn to the canopy of the forest to my NW by subcanopy of apple and sumac directly above the bath, so like in fall 2009, canopy migrants will have an unimpeded pathway to the water not requiring them to leave cover.