A slow swinging of the head from one side to the other; the elephant stands Attentive and Vigilant, typically Freezing and Ear-Spreading. Head-Swinging is most often observed when a group of elephants is facing a threat. Adult females often Head-Swing in unison, as if choreographed.
Tuskless female, Valda, stands Head-Swinging and Foot-Lifting. Then she begins a Perpendicular-Walk, which appears to be a signal for one-tusked Vigilante to Charge. Vigilante Charges, pauses and Charges again and the others join her in a Group-Charge. (Gorongosa, Mozambique)
