Perhaps unsurprisingly, the common dolphin holds the title for the most abundant dolphin in the waters around the UK – although the harbour porpoise is actually the most common cetacean, say the experts from Whale and Dolphin Conservation.
Common dolphins play important roles in the local ecosystem. As the name suggests, they are found all around the UK and are most common off south and west coasts and offshore.
Recognised by their distinctive hourglass colour pattern – with a yellowish patch on the sides and a dark back – they are sleek, fast swimmers that often travel in large, social super-pods.
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These dolphins are highly gregarious and known for their energetic behaviour. They frequently leap out of the water, ride the bow waves of boats, and engage in acrobatic displays, making them a favourite among wildlife enthusiasts. Pods can range from a few individuals to several hundred and often engage in cooperative hunting strategies to herd fish.
You can see them most often in southwest England, western Wales, and the Celtic Sea; particularly during the warmer months from spring to late summer, although sightings are increasingly reported year-round. Their diet consists of schooling fish, like sardines, anchovies and mackerel, as well as squid.
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Common dolphins are also vulnerable to human activity. Bycatch in commercial fishing operations, marine pollution, and disturbance from offshore developments and vessel traffic are among the most pressing threats. Climate change may also alter the distribution of their prey, potentially affecting their foraging success.
