Howell, T.R. 1950 S. y. nuchalis Dry Lake ft., 15 mi. N. of Princeton, B.C. May 3 (cont'd.) I am still uncertain. This "nest" is about 150 yds. S. of the supposed one found in the SW corner yesterday. I went to this one for a few minutes, but did not see or hear a sapsucker. Walking farther north, I paused and heard a tattoo just overhead. Sapsuckers seem to tattoo when one intrudes on their territory (close to the nest?). I did not find a nest here, but could easily have missed it. The bird I saw was nuchalis. Back at my cabin (SE corner of lake) at 11:00 I heard tapping and saw a nuchalis working 25-30 ft up in a poplar right behind the garage of Mr. L.T. Smith, who owns the cabins here. The bird was getting its head all the way in. 11:25 Bird at the "nest" - looks like a σ. He is now getting at least 2/3 in. Every few moments he stops to preen, or just sit. 11:26 - φ arrives, alight above σ; squawks; σ leaves, gliding off with a rattle (described April 29). φ looks in several times, begins tapping around just inside. Now she gets 2/3 in; head feathers are mussed at each withdrawal. At 11:45 She stops work, preens, and then sits. 11:50- scratches, preens. 11:51 - starts work again. 12:04 σ arrives, alights above φ, who glides off with a rattle. σ then down to hole, starts work. This sequence of events is almost identical with that of the previous exchange of places.