Bertie Gregory has just won the Behavioural Mammals Category in the Wildlife Photographer of the Year awards, a category which received 50,000 entries from 95 countries.

In episode 2 of Bertie's lastest 'Animals Up Close' series on Disney plus Bertie Gregory tracks a pod of orcas as they prepare to ‘wave wash’ a Weddell seal. Bertie took two month-long expeditions in the Antarctic Peninsula searching for orcas. ‘We spent every waking minute on the roof of the boat, scanning,’ he says. After battling high winds and freezing conditions, he captured this remarkable behaviour with his drone. These orcas belong to a group that specialises in hunting seals by charging towards the ice, creating a wave that washes the seal into the water. With rising temperatures melting ice floes, seals are spending more time on land, and the behaviour of ‘wave washing’ may disappear. 

Bertie was interviewed on BBC Breakfast this morning to talk about his winning entry and the use of drones in photography, his interview appears at 51 minutes.