Mammals nocturnal

Guadalupe Fur Seal

Arctocephalus townsendi

A resilient survivor of the Pacific, the Guadalupe Fur Seal is easily recognized by its pointed, dog-like snout and plush, silver-tipped mane. Once nearly hunted to extinction, these agile divers are now making a spectacular comeback along the rocky shores of the West Coast.

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Quick Identification

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Size

Males reach 2 meters (6.6 feet) and 160-190 kg (350-420 lbs); Females are smaller at 1.5 meters (4.9 feet) and 45-55 kg (100-120 lbs).

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Colors

Dark brown to nearly black coat; adult males feature a distinctive mane with silver-gray or tan-tipped guard hairs; bellies are slightly lighter brown.

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Key Features

Long, pointed, dog-like muzzle with a bulbous nose
Small but visible external ear flaps (pinnae)
Dense, velvety underfur beneath coarse guard hairs
Hind flippers that can rotate forward for walking on land
A 'grizzled' silver appearance on the neck and shoulders of mature males

When You’ll See Them

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Activity pattern nocturnal

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Peak hours 10 PM - 4 AM (foraging), 11 AM - 3 PM (basking on rocks)

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Season Year-round, with sightings in US waters most frequent from June through August.

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Diet Primarily a nocturnal hunter that feeds on squid and various small fish. They utilize a 'sit-and-wait' or active pursuit strategy at night when their prey migrates toward the ocean surface.

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Habitat Rugged, rocky coastlines, volcanic islands, and deep offshore waters; they specifically prefer shorelines with large boulders or sea caves for protection.

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Behavior

The Guadalupe Fur Seal is a deep-diving specialist that spends much of its life as a solitary traveler in the open ocean. Unlike the more gregarious California Sea Lion, these seals are generally quiet and shy, preferring to haul out on rugged, isolated rocky shorelines or tucked away inside volcanic sea caves. They are exceptionally agile in the water, using their powerful foreflippers to 'fly' through the waves in search of deep-water prey.

During the breeding season, which centers on Guadalupe Island off the coast of Baja California, males become highly territorial and vocal, defending rocky niches from rivals. On land, they are surprisingly mobile; their ability to rotate their hind flippers forward allows them to gallop over uneven terrain with impressive speed. Outside of breeding, they are known to disperse northward, occasionally appearing as far as the Washington coast, though they remain much more elusive than other West Coast pinnipeds.

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Camera Tips

Capturing a Guadalupe Fur Seal on a trail camera requires a focus on 'haul-out' spots—the specific rocky ledges where they exit the water to rest. Unlike harbor seals that prefer flat sand, these seals look for jagged, high-relief rocks or the mouths of sea caves. Mount your camera 2 to 4 feet above the ground on a solid rock face or a heavy-duty tripod weighted with sandbags to withstand coastal winds and salt spray. Angle the camera downward at a 45-degree angle toward the flat ledges just above the high-tide line.

Since these seals are most active in the water at night, your camera must have a powerful infrared (no-glow) flash to capture clear images without startling the animal. Set your trigger speed to its fastest possible setting—ideally under 0.3 seconds—because their movement from the water onto the rocks can be sudden. Use a high-speed SD card to ensure the camera can handle 'Burst Mode' (3-5 photos per trigger), which increases your chances of getting a clear shot of the pointed snout and ear flaps needed for a positive ID.

Video mode is the real secret to documenting this species effectively. Set your camera to record 20-second clips with a 5-second 'cool down' period. This allows you to observe their unique 'walking' gait and hear their distinct vocalizations, which are much higher-pitched than the barks of sea lions. Because salt spray is the enemy of camera gear, use a waterproof security housing and apply a water-repellent coating (like Rain-X) to the lens cover. Always place your camera well above the reach of the highest tide and rogue waves to protect your equipment.

Similar Species

Species that look similar or are commonly confused with Guadalupe Fur Seal.

California Sea Lion

Sea lions have a much blunter snout, lack the thick velvety underfur, and make a loud barking sound rather than the fur seal's huffs and wails.

Northern Fur Seal

Northern fur seals have a much shorter, tinier snout and longer hind flippers; they are rarely seen hauled out on the mainland coast.

Harbor Seal

Harbor seals lack external ear flaps and cannot rotate their hind flippers forward to walk; they move on land by 'galumphing' on their bellies.

Frequently Asked Questions

Guadalupe Fur Seals are nocturnal foragers, doing most of their hunting in the middle of the night when squid are near the surface. However, they are most likely to be seen on land during the day while they bask on rocks to regulate their body temperature.

Because they are marine mammals, you cannot attract them to a typical backyard. If you live on a rocky coastline, the best way to see them is to maintain a quiet, dog-free shoreline and preserve natural sea caves and rocky outcroppings where they feel safe hauling out.

Their diet consists almost entirely of squid and small schooling fish. They are deep divers but prefer to wait until nightfall when their prey moves into shallower waters to feed.

No, they are quite rare and avoid human activity. They are most commonly found on offshore islands like Guadalupe Island or the Channel Islands, though they are occasionally spotted on secluded rocky beaches in Southern and Central California.

Look at the snout: fur seals have a much longer, more pointed 'dog-like' nose compared to the blunter snout of a sea lion. Additionally, fur seals have much thicker, plusher fur and more prominent external ear flaps.

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