South American Tern

South American Tern

Sterna hirundinacea

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Tierra del Fuego National Park

📅 Monthly Probability

20–30
Jan
50–60
Feb
40–50
Mar
20–30
Apr
10–20
May
20–30
Jun
10–20
Jul
10–20
Aug
10–20
Sep
0–10
Oct
10–20
Nov
20–30
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Península Valdés 🇦🇷 Argentina
40–50%
2 Tierra del Fuego National Park 🇦🇷 Argentina
20–30%
3 Torres del Paine National Park 🇨🇱 Chile
0–10%
4 Paracas National Reserve 🇵🇪 Peru
<5%
5 Machalilla National Park 🇪🇨 Ecuador
<5%
6 Tijuca National Park 🇧🇷 Brazil
Insufficient data

Quick answers

What are the chances of seeing a South American Tern in Tierra del Fuego National Park?

About 26% of visitor-days record a South American Tern sighting in Tierra del Fuego National Park, based on 267 observer-days of citizen-science data from GBIF.

When is the best time to see South American Tern in Tierra del Fuego National Park?

February has the highest sighting rate for South American Tern in Tierra del Fuego National Park in our monthly data.

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