LS of silhouette of spruce trees at dusk, a chicken vulture is visible perched on branch in center frame, ZOOM IN to MS of silhouette of two vultures in tree, ZOOM IN to CS of one of them, TILT UP to CS of the second one (0:49). MCS of silhouette of raven attacking vulture who flies away, TILT DOWN to shot of other vulture (0:29). 0:21). CS, MS of vulture perched in spruce tree, preening, it takes off (1:09).