Davis 1949 Colp. June 28. Red's Meadow, @ 750 ft, Sierra Nat'l For., Mariposa Co., 1 below hole. All trees, including nest tree and all adjacent trees, are Pinus Murrayana. Girth of nest tree 23" at entrance. Tree sways slightly in wind. Girth of tree 18" to north of nest tree 38" at next entrance level. There are scattered feathers on side of tree away from nest hole where bark has been removed and bill marks are visible on the exposed wood. The shavings and splinters of excavated wood are scattered over an area 5 x 3 ft, but the bulk are below and slightly to north side of cavity. Other more scattered chips probably blown around. 11:45 Young chicks, rattlesnake, chicks, is silent. F-9 drums from across road. 11:50 Junior chicks several times, rattles, sticks head way out and looks around, chuffs, rattles once more, and chuffs sporadically. F still drums across road. Junior quiet. 11:53 F emits whicker from across road, a little different than usual rattle. 11:58 Junior chuffs and rattles several times, peers out, is quiet by 12:05. From about 12:15 - 12:45 young bird chuffed and rattled continually, thrusting head & neck out of hole and peering out. F came back at about 1 and again at 1:45, both times alighting on adjacent trees & flying away without feeding young.