His post to ebird listserve
Initially though to be TEWA in the field, but I'm revising now. Seen feeding high in oak atop Lookout, which led me to rule out OCWA. Viewed mostly its underparts, with occasional profile views from 30-40 feet.
Large warbler, compared to the nearby NOPA, but smaller than even larger BLPW. Viewed broken eye-ring, seemingly dark lores which gave impression of an eye-line. Small, pointy bill characteristic of Oreothlypis.