Inca Tern

Inca Tern

Larosterna inca

Silhouette: Juan Carlos Jerí · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~60% · Likely
at Paracas National Reserve
508 Verified sightings at Paracas National Reserve From 2019 to 2026
711 Verified sightings across all 4 parks From 2019 to 2026
July Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Inca Tern

The Inca tern (Larosterna inca) is a near-threatened species of tern in the subfamily Sterninae of the family Laridae (the gulls, terns, and skimmers). It is found along the Pacific coasts of Chile, Ecuador and Perú, and has appeared as a vagrant in Central America and Hawaii.

The Inca tern is the sole member of its monotypic genus Larosterna, and has no accepted subspecies. Perhaps surprisingly given its highly distinct plumage, the Inca tern is not particularly basal among the terns, being more closely related to typical Sterna terns than any of the superficially much more similar genera Gelochelidon, Hydroprogne, Onychoprion, Phaetusa, or Sternula are.

The Inca tern is roughly 39 to 42 cm (15 to 17 in) long and weighs between 180 to 210 g (6.3 to 7.4 oz). Its plumage is uniquely colored among terns; adults have a mostly dark, slate-gray body, with paler underwing coverts, and a slightly paler throat. A white stripe extends back from the base of the bill and fans out like a Salvador Dalíesque mustache as long, satiny feathers along the side of the neck. The trailing edge of the wing (the tips of the secondaries and the three inner... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Paracas National Reserve 🇵🇪 Peru
~60%
2 Machalilla National Park 🇪🇨 Ecuador
~10%
3 Soberanía National Park 🇵🇦 Panama
Insufficient data
4 Galápagos Islands 🇪🇨 Ecuador
Insufficient data

Quick answers

What are the chances of seeing a Inca Tern in Paracas National Reserve?

About 60% of wildlife watchers report a Inca Tern sighting in Paracas National Reserve, based on 508 verified sightings from GBIF citizen-science data.

When is the best time to see Inca Tern in Paracas National Reserve?

July has the highest sighting rate for Inca Tern in Paracas National Reserve in our monthly data.

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