pivoting turn by touching water

Pivoting Turn By Touching WaterNIKON D7000 (420mm, f/8, 1/320 sec, ISO 3200)
Two greylag geese chasing each other at dawn and making a pivoting turn in flight with one wing tip touching the water of a pond near Castricum, NL.

This reminds me strongly of the way short track speed skaters go around a turn leaning strongly towards the inside of the turn and with their hand on the inside touching the ice.