Michael,

Great trip. I had a singing Wilson's Warbler once in late June, I
believe, probably mid 1970s at Tucannon campground along the Tucannon
River. It was on a very damp shaded slope just behind our campsite. Also
had a Flammulated Owl and Poorwills at that spot and White-headed
Woodpecker nearby. Too earlier for the atlas database, however. By the
way, I presume the White-crowned Sparrows showed the pale lores and other
morphological features of _oriantha_. How obvious to the eye were they?

Gene.