K Dixon 1951 Sitta pygmaea Sept. 14 Inverness Ridge, Marin Co., Calif. - Same locality visited July 15. High fog overcast, calm. 8:20 a.m. 2 nuthatches flew in from pines S to perch on deal stump t 12 ft. high; other nuthatches already calling wee-bi-deek from small pine 15 ft. NW (these trees beside road). A third nuthatch followed the first two almost immedi- ately, perching on the trunk near the two, then flying to pine NE after a few seconds. I saw no threatening movement of the two nuthatches there and recalled no notes uttered. One of the two birds flew across the road to a patch of pines on the hill to the W; the other bird continued to work down the trunk, apparently foraging on the bark. One, then a second nuthatch flew to the stump from the pine NE (where they had not been visible and perched within a few inches of the lone occupant of the stump. I could detect no postures nor difference in notes, yet I had an impression of parent-juvenile relationship (no feeding and no begging however). One more nuthatch flew in from pine NE and I left them working on trunk. I returned with shotgun 5 minutes later and heard the nuthatches 30-40 yards to SE in pines. One individual of a loose flock was moving down a trunk foraging and I shot at it.