AK Pearson 1952 Tanimates (cont) March 28, 1952 - Went to nest #2 at 8:40 AM to relieve OP? No bird on nest since 7:30 at least. Bird returned, walking up the gulley below nest at 9:16. Climbed onto nest, part of wriggling its body, facing north. Started nest building right away, wriggled some more, gradually did a 180° turn, then turned about a little more until it faced SE. Nest building and an occasional preen for 20-25 min. Then the bird folded in its head until it could hardly be seen as a distinct hump on the flat rock-like body, and seemed to sleep for about an hour. At 11 A.M. two sheep "maaa"ed down the valley about 300yds, and the bird sat up and began to watch them, also resumed nest building although not so intensively as when it first came back to the nest. I saw it put some back feathers into the nest. Also tried to lean way out of the nest to reach some grass bits around the nest. Some were too far for it to reach, & at 11:40 the bird got off the nest, picked up the grass bits, flung them at the nest, and climbed back on. Not much more until 12:15 when CIC+MK came by. March 29, 1952 - Went to nest #2 at 2 P.M. Bird dozing on nest. From 2:20 to 2:40 bird built nest, preened. Several times pulled feather from its back and tucked it into the nest. Weather looked threatening and slight snow squalls