Large-billed Tern
Phaetusa simplex
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusPhaetusa
- SpeciesPhaetusa simplex (Large-billed Tern)
Closest Relatives at Cordillera Azul National Park
Black Skimmer
Rynchops niger
Yellow-billed Tern
Sternula superciliaris
Andean Gull
Chroicocephalus serranus
Wattled Jacana
Jacana jacana
Black-necked Stilt
Himantopus mexicanus
Southern Lapwing
Vanellus chilensis
Lesser Yellowlegs
Tringa flavipes
Pied Lapwing
Hoploxypterus cayanus
Spotted Sandpiper
Actitis macularius
Solitary Sandpiper
Tringa solitaria
Greater Yellowlegs
Tringa melanoleuca
Pectoral Sandpiper
Calidris melanotos
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
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 | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 3 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 4 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 5 | Iberá National Park | 🇦🇷 Argentina | |
| 6 | Tambopata National Reserve | 🇵🇪 Peru | |
| 7 | Caroni Swamp | 🇹🇹 Trinidad and Tobago | |
| 8 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 9 | Manu National Park | 🇵🇪 Peru | |
| 10 | El Palmar National Park | 🇦🇷 Argentina | |
| 11 | Madidi National Park | 🇧🇴 Bolivia | |
| 12 | Yasuní National Park | 🇪🇨 Ecuador | |
| 13 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 14 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 15 | Cordillera Azul National Park | 🇵🇪 Peru | |
| 16 | Amboró National Park | 🇧🇴 Bolivia | |
| 17 | Henri Pittier National Park | 🇻🇪 Venezuela | |
| 18 | Canaima National Park | 🇻🇪 Venezuela | |
| 19 | Tayrona National Natural Park | 🇨🇴 Colombia | |
| 20 | Machalilla National Park | 🇪🇨 Ecuador | |
| 21 | Darién National Park | 🇵🇦 Panama | |
| 22 | Iguaçu National Park | 🇧🇷 Brazil | |
| 23 | Iguazú National Park | 🇦🇷 Argentina |
Quick answers
What are the chances of seeing a Large-billed Tern in Cordillera Azul National Park?
About 4% of visitor-days record a Large-billed Tern sighting in Cordillera Azul National Park, based on 48 observer-days of citizen-science data from GBIF.
When is the best time to see Large-billed Tern in Cordillera Azul National Park?
November has the highest sighting rate for Large-billed Tern in Cordillera Azul National Park in our monthly data.