Fish diurnal

Bullnose Eagle Ray

Myliobatis freminvillei

With its distinctive rounded snout and powerful, wing-like fins, the Bullnose Eagle Ray is a master of the coastal shallows. Often seen 'flying' through estuaries, this elusive ray is a favorite for coastal residents and underwater explorers alike.

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Quick Identification

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Size

Maximum disc width of 106 cm (42 inches); typically weighs between 10 and 35 lbs.

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Colors

Solid grayish-brown to chocolate brown on the upper surface; creamy white underside with no distinct spots or patterns.

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Key Features

Distinctive rounded, bull-like snout
Pointed, wing-like pectoral fins
Long whip-like tail with a stinging spine near the base
Solid dark coloration without the white spots of other eagle rays

When You’ll See Them

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Activity pattern diurnal

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Peak hours Variable based on tides, but most active during high tide and the first few hours of daylight.

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Season June through September in northern ranges; year-round in the southern Atlantic and tropics.

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Diet A carnivorous bottom-feeder specializing in hard-shelled invertebrates. They use their snouts to uncover crustaceans, gastropods (snails), and isopods, which they crush using powerful, plate-like teeth.

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Habitat Shallow coastal waters, salt marshes, and estuaries; prefers sandy or muddy bottoms at depths of 3 to 33 feet.

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Behavior

The Bullnose Eagle Ray is a graceful, active swimmer that appears to 'fly' through the water using rhythmic beats of its large pectoral fins. Unlike many other ray species that spend the majority of their time camouflaged on the seafloor, the Bullnose Eagle Ray is frequently observed cruising through the mid-water column or just above the substrate in search of food. They are known to be quite active, sometimes leaping out of the water in a behavior known as breaching.

Socially, they are often solitary but may congregate in loose groups near estuaries or coastal inlets, especially during seasonal migrations. While they possess a venomous spine for self-defense, they are generally shy and will move away from human activity. They are highly intelligent foragers, using their specialized snouts to root through sand and mud to find buried prey.

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Camera Tips

Capturing a Bullnose Eagle Ray on camera requires an underwater setup, ideally mounted to a private dock, pier, or a weighted 'benthic' seafloor stand. Because these rays follow the tide to forage in shallow estuaries, position your camera in a transition zone—the edge where a seagrass bed meets a sandy clearing. This 'edge habitat' is where they are most likely to use their snouts to dig for prey, providing excellent footage of their unique feeding mechanics.

For the best results, use a wide-angle lens and set your camera at a 45-degree downward angle approximately 2 feet off the bottom. Natural light is your best friend in shallow coastal water; try to aim the camera away from the direct sun to prevent lens flare, focusing on the hours between 8 AM and 11 AM when the water is often clearest before afternoon winds stir up sediment. If your camera has a 'high frame rate' mode, use it to capture the elegant, bird-like flapping of their fins in slow motion.

While you shouldn't 'bait' rays in the traditional sense, placing your camera near an active oyster bar or a known clam bed will naturally increase your encounter rate. If using an AI-powered camera, adjust the sensitivity to account for moving sea grass or floating debris, which can cause false triggers. Bullnose rays are sensitive to electrical fields, so ensure all underwater housings and battery packs are well-sealed and insulated to avoid spooking them as they approach.

Similar Species

Species that look similar or are commonly confused with Bullnose Eagle Ray.

Southern Eagle Ray

The Southern Eagle Ray has a more pointed, longer snout and often reaches slightly larger sizes than the Bullnose.

Spotted Eagle Ray

Easily distinguished by a dark back covered in numerous white spots or rings, whereas the Bullnose is a solid brown or gray.

Cownose Ray

The Cownose Ray has a distinctive indented, 'double-lobed' snout that looks like a cow's nose, unlike the single rounded snout of the Bullnose.

Frequently Asked Questions

Bullnose Eagle Rays are primarily diurnal, meaning they are most active during the day. Their movement is heavily influenced by the tides; they often move into shallow estuaries and near docks during high tide to forage for food.

You can't easily attract them with food without harming the ecosystem, but you can increase sightings by placing cameras near sandy flats or oyster reefs where their natural prey (crabs and clams) lives. They are naturally curious and may investigate stationary objects on the seafloor.

They are specialized hunters of the seafloor, eating a variety of crustaceans, snails, clams, and small bottom-dwelling invertebrates. They use their snouts to dig them out of the mud and their flat teeth to crush the shells.

If you live in a coastal community along the Western Atlantic, yes! They are frequently found in residential canals, salt marshes, and under backyard docks from Massachusetts down to Florida and into South America.

The most obvious difference is the snout; the Bullnose has a more rounded, bulbous 'nose' compared to the Southern Eagle Ray. Additionally, Bullnose rays are generally a solid color, whereas similar species like the Spotted Eagle Ray are covered in white rings or spots.

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