While filming and sound recording in Scotland (Ailsa Craig, Bass Rock, Isle of May, Outer Hebrides, Troup Head) during a residency at the Centre for Contemporary Arts in Glasgow, and in Eastern Quebec (Parc national de l’Île-Bonaventure-et-du-Rocher-Percé, Parc national Forillon), I became interested in the North Sea and North Atlantic Seabirds. The video Leading Edge / Trailing Edge loosely evokes, through seascapes, portraits of birds and recent scientific data, the actual situation of boreal seabird species, in the era of climate change.