Close encounter with seal-hunting Orcas at John O'Groats
by Claudia Afeltra from Sea Watch Foundation
On June 1st, 2024, participants of Orca Watch 2024 witnessed a rare and close encounter with an orca (Orcinus orca) pod. Following initial sightings near Brough Bay, a pod comprised of a single male and two females travelled along the coastline towards John O’Groats.
As the orcas rounded St John’s Point and became visible from Gills Bay, excitement grew significantly as the animals approached the shore at an unusually close distance. This proximity provided a unique viewing opportunity for observers. The pod continued towards John O’Groats at a sustained pace, with some attendees attempting to follow for a second glimpse.
The most dramatic event, however, unfolded later in the day. Upon returning into view, the orcas were observed actively swimming closer to the shoreline. At a distance of mere meters, thrashing and movement were evident at the water's surface. Observers then realized they were witnessing a live orca hunting attempt.
Predatory Strategies of Scottish Orcas
Orcas employ different tactics when hunting grey seals, their primary prey. While the specific method used by this pod remains undetermined, known strategies include:
Herding: Orcas work cooperatively to herd groups of seals towards the shore, effectively cutting off their escape routes back into the water.
Pinching: Two orcas will strategically position themselves on either side of a seal, forcing it to flee into the water where the rest of the pod awaits.
Tail Slapping: Orcas may utilize their powerful tails to stun or injure a seal, increasing their capture success rate.
Fortunately for the targeted grey seal, a common prey species for orcas in this region, managed to evade the orcas' pursuit.
Pod Identification and Significance
Photo-identification techniques confirmed the orca pod as the #27s transient community. The leading member, a large bull, was identified as #72, accompanied by two females, #73 and #153. These identification numbers correspond to the well-established Scottish Orca Identification Catalogue, a critical tool for research and monitoring of orca populations.
The close encounter and observed hunting attempt at Orca Watch 2024 highlight the exceptional predatory capabilities and agility of these apex predators. This event also underscores the importance of responsible wildlife observation practices that maintain a safe distance for both humans and animals.
3 June 2024
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