m. Redon, 1942 Cullorpe (Hummingbird) E. fork Sheep Creek, 5500 ft, King R. Canyon, Truax Co., CO June 2, 1942 Left after about 6 minutes and reappeared in 3 min. from SW, flying directly into nest & for several seconds turning head rapidly from side to side. Facing NE sitting very erect this time could see about "2 in. of breast below wrist of black throat markings. Disappear direct left I could note the direction she took. Appeared in about 4 min., perched at edge of nest & fed nestling. Could not see the direction of her first job, however the next three, two seemed directed to the same gap of the nest. Slid on nest facing NW & suffled her wings several times as she settled down. Did not notice, between feedings, the throwing back of the head which I had noticed before. Flew off in about 5 min. made an arc & flew around toward NE swooping downward & then up again. If N' represent the nest, she followed line N'X.