Howell, T.R. 1950 S. v. nuchalis Dry Lake, 15mi. N. of Princeton, British Columbia. April 28 (cont'd) - both "ads" again engage each other in noise making. An exchange of tattoos - one approaches the other, then flies over to pine-squawds- all four birds there, much "crest-raising, bobbing, squawking - can't tell which is after which. At 11:40 there are only two birds visible - one an "ad.," tattooing on a dead stub and a ♀? in a dead asp about 10 ft. away. After a while the ♀? flies down and out of sight. screams and yelps are heard from time to time. The "ad." is still sitting at the top of the dead stub, tattooing occasionally. I leave, 12:00. The trees around here are not much worked by sapsuckers; perhaps those here are recently arrived. I think they are just [illegible] establishing territories and choosing mates, with nest construction not yet begun. I have not yet seen any ruber; there is a high ridge running north- south just to the west of here and that may act as a barrier. Some streams run through it, so a few should drift through.