Scientist Jim Dawson walking uphill among cactuses. Harris' hawks backstanding and tumbling off top of saguaro cactus (two shots). Sequence on scientist Jim Dawson capturing Harris' hawk using mist net and stuffed great horned owl. Sequence on scientist Jim Dawson removing mist net from talons of captured Harris' hawk. Sequence on scientist Jim Dawson tagging and weighing captured Harris' hawk. (61)