The whales are believed to have been teaching a calf to eat and could have been attracted to the Clyde by the porpoises and seals that would be food
SPECTATORS on the River Clyde were thrilled as they witnessed a pod of killer whales swimming and jumping in the water.
The mammals were filmed near Gourock and Dunoon and it is understood that at least one calf is travelling with the group.
Eyewitness Chris Denovan told how he saw up to six of the whales when he filmed them swimming in the Clyde earlier this week.
Lindsay Moss also clocked the mammals during a Western Ferries trip between Gourock and Dunoon on Saturday afternoon.
David Nairn, of Clyde Porpoise marine mammal project, said: "It's absolutely fantastic for the Clyde."
Speaking to BBC Scotland he continued: "It's just so exciting. Everyone's on the beach with binoculars."
Mr Nairn also believes the footage shows a calf that is being taught to eat by other members of the pod.
They are likely to have been attracted to the River Clyde by the porpoises and seals that would act as dinner for the pod.
He said he had alerted Belfast Coastguard as well as Faslane naval base to the presence of the whales.
Orcas are sociable animals and travel in groups of up to 50.
Despite their "killer" nickname, they have never been known to show aggression to humans in the wild and rarely among themselves, according to cetacean charity ORCA.
In the UK, they are seen most regularly around the Shetland and Orkney islands.
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