Here we have multiple pictures of the same bird. I have read countless times in this forum,"It's extremely difficult/foolish/misleading to base an ID on a single photo." Here it's difficult to discern a single field mark in Any of the photos. One shows a deeply notched tail. After 46 years of birding I was unaware of wood warblers having such. The tail rather reminds me of a goldfinch. Now someone will probably post a goldfinch photo showing no notch. I was oblivious to Linda's reference to "April". But I note a bunch of swollen yet completely unopened leaf or flower buds--must be April, probably first twenty days in April. Basically all trees native or not, with the exception of "English"(Circassian)Walnut , have broken bud in Grande Ronde , Oregon by May Day. Orange-crowned Warblers appear there as early as March 25, coincident with red alders leafing out. This tree seems to be a cherry or plum, certainly not Alnus rubra. Yellow Warblers mostly appear after May 1st and are always quite uncommon on the Coast Range's eastern flank. Away from conifers O-Cs are the default warbler in that same geography, outnumbering all other warblers combined. Since I began typing this Dave Irons has posted with nearly identical pointers, plus some actual comments on plumage. Lars OBOL archives: www.freelists.org/archive/obol Manage your account or unsubscribe: //www.freelists.org/list/obol Contact moderators: obol-moderators@xxxxxxxxxxxxx