On the way home from the Wallowas we opted to have lunch at the Isq'ulktpe Creek Overlook off of I-84 about 3 miles north of Emigrant Springs SP. While there, we're sure we heard a NORTHERN PARULA. Unfortunately, we never were able to confirm with a sighting, but the bird sang for several minutes before it headed off to the north.
GPS coordinates are 45.580457, -118.451333
Other than that, the highlights of our NE Oregon birding trip included owl families (both Short-Eared and Great Horned) on Enterprise's Golf Course Road at dusk. We had Gray Catbirds at Sag Road in Baker County and at the Wallowa River Wayside. We also enjoyed the numerous campground Veeries at Catherine Creek and Minam State Parks and the outstanding wildflowers along Zumwalt Road.