Howell, T.R. 1950 S. various ssp. 50 mi. SW of Princeton, ft., British Columbia July 12 (cont'd.) where all had been snowdrifts when I left, it is now thick brush and herbs. In a few [illegible] minutes, however, I found a typical nuchalis nest here which is surely the one I hunted for so hard before. It is in a big, gray, barkless dead conifer, about 35 ft up, facing approximately east. Both parents were seen together, and one cleaned the nest. They go halfway in to feed the young, but it may be that nests in tough wood are deeper horizontally. A roaring stream prevented me from hearing any noise the young may have been making. Across the Burn, at 53 mi. SW of Princeton, ft., B.C., I saw a typical ruber right where I saw one tattooing over a month ago. It flew about gathering insects and then made a direct flight into some nearby timber, but I could not find the nest or the bird again. There is a roaring stream here too, which prevents location of nests by ear. There cannot be much gene flow if typical and different nesters are found on opposite sides of a 3 mile gap. 29 mi. SW of Princeton, ft., B.C. July 13 - I was by the r-n nest site before the sun was over the ridges, which was about 5:15 A.M. All my tattooing and squeaking, here and in adjacent areas, got no response at all except one very distant scream. After two