Howell, T.R. 1950 5. Various ssp. 29 mi. SW of Princeton ft., British Columbia May 21 (cont'd) birds screamed back and forth a little. The n. flew up the slope to a broken-off dead Tree and began to work in a nest-site, into which it got about 1/3 of its body. I did not see the r. again, but heard two yattoos from that direction later. The n. worked steadily for what seemed like half an hour, the flew off with a few screams. I strongly suspect that this is the same r-n. pair, if it is a pair. The ruber looked exactly like the previously-observed one, with a faint white post-ocular mark. The nest site is in a dead stub which is of the same size and at the same level as the one on the other slope, and the site is at the same height. I will have to look into this further tomorrow. May 22 - 8:50 A.M. (overslept)-at the spot just de- scribed. Yelps, a bird to the nest site, one leaves with a rattle; I am too close, the other leaves silently. 9:15- typical nuchalis to nest; it yelps. Another typical n. comes up -- squawks -- one leaves silently. The remaining one goes right to work, getting 3/3 in the nest. As both birds are typical, it is likely that r. wandered into this territory yesterday and is in no way involved in this nest. 9:24- this bird flies 200yds down the slope. Another appears; they get together and squawk. Then the work up the slope, 100 yds or so past the nest. More squawks. At 9:29, a tattoo. 9:37- Yelps from up the slope; now both birds to nest--squawks--one leaves, the other begins to work. I leave.