Large-billed Tern

Large-billed Tern

Phaetusa simplex

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
30–40% · Possible
overall probability at Amacayacu National Natural Park

📅 Monthly Probability

20–30
Jan
40–50
Feb
30–40
Mar
40–50
Apr
20–30
May
40–50
Jun
40–50
Jul
30–40
Aug
30–40
Sep
30–40
Oct
40–50
Nov
40–50
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 Noel Kempff Mercado National Park 🇧🇴 Bolivia
50–60%
2 Parque Estadual Encontro das Águas 🇧🇷 Brazil
40–50%
3 Amacayacu National Natural Park 🇨🇴 Colombia
30–40%
4 Anavilhanas National Park 🇧🇷 Brazil
20–30%
5 Iberá National Park 🇦🇷 Argentina
20–30%
6 Tambopata National Reserve 🇵🇪 Peru
10–20%
7 Caroni Swamp 🇹🇹 Trinidad and Tobago
10–20%
8 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador
0–10%
9 Manu National Park 🇵🇪 Peru
0–10%
10 El Palmar National Park 🇦🇷 Argentina
0–10%
11 Madidi National Park 🇧🇴 Bolivia
0–10%
12 Yasuní National Park 🇪🇨 Ecuador
0–10%
13 El Impenetrable National Park 🇦🇷 Argentina
0–10%
14 Sierra de la Macarena National Park 🇨🇴 Colombia
0–10%
15 Cordillera Azul National Park 🇵🇪 Peru
<5%
16 Amboró National Park 🇧🇴 Bolivia
<5%
17 Henri Pittier National Park 🇻🇪 Venezuela
<5%
18 Canaima National Park 🇻🇪 Venezuela
<5%
19 Tayrona National Natural Park 🇨🇴 Colombia
<5%
20 Machalilla National Park 🇪🇨 Ecuador
Insufficient data
21 Darién National Park 🇵🇦 Panama
Insufficient data
22 Iguaçu National Park 🇧🇷 Brazil
Insufficient data
23 Iguazú National Park 🇦🇷 Argentina
Insufficient data

Quick answers

What are the chances of seeing a Large-billed Tern in Amacayacu National Natural Park?

About 36% of visitor-days record a Large-billed Tern sighting in Amacayacu National Natural Park, based on 316 observer-days of citizen-science data from GBIF.

When is the best time to see Large-billed Tern in Amacayacu National Natural Park?

July has the highest sighting rate for Large-billed Tern in Amacayacu National Natural Park in our monthly data.

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