Southern Sea Lion

Southern Sea Lion

Otaria byronia

Silhouette: Leonardo Hostos Olivera · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~80% · Very likely
at Península Valdés
218 Verified sightings at Península Valdés From 2019 to 2026
355 Verified sightings across all 4 parks From 2019 to 2026
August Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Southern Sea Lion

The South American sea lion (Otaria flavescens, formerly Otaria byronia), also called the southern sea lion and the Patagonian sea lion, is a sea lion found on the western and southeastern coasts of South America. It is the only extant member of the genus Otaria, which also includes the extinct Otaria josefinae. The species is highly sexually dimorphic. Males have a large head and prominent mane. They mainly feed on fish and cephalopods and haul out on sand, gravel, rocky, or pebble beaches. Breeding males typically defend both territories and individual females, though this can vary. Less dominant males may try to achieve success by causing chaos in the group. The overall population of the species is considered stable, estimated at 265,000 animals.

The South American sea lion was classified as Phoca flavescens by George Shaw in 1800 and as Otaria byronia by Henri Marie Ducrotay de Blainville in 1820. The two nomenclatures were historically used interchangeably, but O. flavescens has become the preferred name. The species is also known by the common name "southern sea lion", although it is not preferred since the Australian sea lion and New Zealand sea lion also range in... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Península Valdés 🇦🇷 Argentina
~80%
2 Paracas National Reserve 🇵🇪 Peru
~70%
3 Machalilla National Park 🇪🇨 Ecuador
~30%
4 Tierra del Fuego National Park 🇦🇷 Argentina
~20%

Quick answers

What are the chances of seeing a Southern Sea Lion in Península Valdés?

About 80% of wildlife watchers report a Southern Sea Lion sighting in Península Valdés, based on 218 verified sightings from GBIF citizen-science data.

When is the best time to see Southern Sea Lion in Península Valdés?

August has the highest sighting rate for Southern Sea Lion in Península Valdés in our monthly data.

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