Mammals diurnal

Common Dolphin

Delphinus delphis

The ocean's most iconic acrobat, the Common Dolphin is a master of speed and social grace. Look for their signature hourglass markings as they surf the waves and leap in synchronized megapods.

0 Sightings

0 Habitats

Quick Identification

straighten

Size

Length: 1.7–2.4 m (5.6–7.9 ft); Weight: 70–200 kg (150–440 lbs)

palette

Colors

Features a dark grey 'cape' along the back that forms a V-shape under the dorsal fin; the flanks have a unique hourglass pattern with a yellowish-tan patch toward the front and a pale grey patch toward the tail; the belly is white.

visibility

Key Features

Distinctive tan and grey hourglass pattern on the sides
Long, narrow beak (rostrum) that is sharply demarcated from the forehead
A dark V-shaped 'cape' visible directly beneath the dorsal fin
Highly energetic and frequently leaps entirely out of the water

When You’ll See Them

schedule

Activity pattern diurnal

brightness_5

Peak hours 8 AM – 6 PM for surface sightings; feeding can occur at night

calendar_month

Season Year-round, with peak sightings often coinciding with local fish migrations

restaurant

Diet Small schooling fish (such as sardines, anchovies, and mackerel) and squid. They often hunt cooperatively to trap prey.

park

Habitat Deep offshore waters and coastal regions; often seen from cliffs, piers, or boats near continental shelf breaks.

bar_chart
Loading activity data...

Behavior

Common Dolphins are the socialites of the sea, often traveling in enormous groups known as 'megapods' that can number in the thousands. They are exceptionally high-energy animals, known for their acrobatic displays, including breaching, chin slapping, and porpoising. They are among the most vocal cetaceans, using a complex series of whistles, clicks, and pulses to coordinate hunts and maintain social bonds within their tight-knit communities.

These dolphins are famous for 'bow-riding,' where they surf the pressure wave created by the front of a boat. This behavior isn't just for fun; it allows them to travel long distances with minimal effort. While they are generally curious and friendly toward vessels, they remain wild predators with sophisticated hunting strategies, often working together to herd schools of fish into tight 'bait balls' before taking turns darting through for a meal.

photo_camera EverydayEarth exclusive

Camera Tips

Capturing the Common Dolphin on a camera requires a different strategy than terrestrial wildlife because your 'backyard' is likely a pier, a beachfront, or a boat. If you live on the coast, an AI-powered camera with a long-range telephoto lens is your best friend. Position your camera at a high vantage point, such as a balcony or a seaside deck, angled slightly downward toward the horizon where the continental shelf begins to drop off. Common Dolphins are fast, so you need a camera with a high frame rate and a very fast shutter speed—at least 1/2000 of a second—to freeze their mid-air leaps without motion blur.

Glance at the water's surface for 'white water' or bird activity. Common Dolphins often hunt in association with gannets and gulls; if you see birds diving, point your camera there. Using a circular polarizing filter is the single most important hardware tip—it cuts through the surface glare and reflections, allowing your camera's AI to better track the dolphins' dark shapes beneath the water before they breach. If you are using a dock-mounted waterproof camera, look for areas with current breaks where baitfish might congregate.

For those using motion-triggered setups, set your trigger sensitivity to high and use 'Burst Mode.' Common Dolphins rarely travel alone, so one trigger usually precedes a dozen more opportunities. If your camera allows for pre-roll or 'pre-capture' video, enable it; this ensures you catch the start of a jump rather than just the splash. During the 'Golden Hour' (shortly after sunrise or before sunset), the tan patches on their flanks become highly reflective, making it the perfect time for the AI to distinguish them from the surrounding blue-grey water.

Similar Species

Species that look similar or are commonly confused with Common Dolphin.

Bottlenose Dolphin

Much larger with a uniform grey body and a shorter, thicker beak, lacking the hourglass side pattern.

Striped Dolphin

Lacks the tan hourglass patch; instead features a distinctive dark stripe running from the eye to the flipper.

Frequently Asked Questions

Common Dolphin are primarily diurnal, meaning they are most active and visible during daylight hours. They are frequently seen leaping and bow-riding between 8 AM and 5 PM, though they may engage in deep-water feeding on squid and small fish during the night.

You cannot easily attract dolphins with food, as they follow natural migrations of schooling fish. However, they are naturally curious about movement; they are often drawn to the wake of boats or even the presence of other large marine animals. Keeping a clean, pollution-free coastline helps maintain the healthy fish populations they rely on.

Their diet consists mainly of small schooling fish like sardines, anchovies, and herring. They are also known to eat squid and occasionally crustaceans, using sophisticated sonar to locate prey in the water column.

Yes, in many parts of the world, Common Dolphins are frequently sighted from suburban shorelines, particularly in areas where the water depth increases rapidly near the coast, such as parts of California, South Africa, and the Mediterranean.

The easiest way is the color pattern: Common Dolphins have a distinct tan/yellow and grey 'hourglass' pattern on their sides, whereas Bottlenose Dolphins are a more uniform grey. Common Dolphins are also smaller and have a more slender beak than the robust Bottlenose.

Record Common Dolphin at your habitat

Connect a camera to start building your own species record — AI identifies every visitor automatically.

Join free Identify a photo