M. Redon, 1942 Calliope Hummingbird Calif. E.Fork Sheep Creek, 5500 ft., Kings R. Canyon, Fresno Co. June 1, 1942 She stayed away only about a minute and a half or two. When I turned, she was already on the nest, facing SW and I do not know whether she fed her nestlings or not. Sat on nest about 4 minutes and then flew off. Returned in about 4 minutes & fed her youngsters. Now that I can see the nestlings' heads so she feeds them I can see that she does alternate from one to the other in her feeding & that between each, she sort of pulls her head forward & jerk it back (facing fort up?) She flew off immediately then returned in about 3 minutes without feeding her young. On nest 12 min. and then flew off SW NW again. Arrived without feeding young; face S. flew off to NW after 2 min. on nest. Reappeared 7 minutes later & fed young. Definitely she fed them alternately this time; she sat facing SW to SE when she had finished. On getting on the nest she flapped her wings this time. Left after a few minute Did not feed young on return & flew into nest facing E. Sat on nest 4 minutes & then flew off to the NW & down again.