Bridled Tern
Onychoprion anaethetus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusOnychoprion (Brown-backed Terns)
- SpeciesOnychoprion anaethetus (Bridled Tern)
Closest Relatives at Yala National Park
Whiskered Tern
Chlidonias hybrida
Gull-billed Tern
Gelochelidon nilotica
Little Tern
Sternula albifrons
White-winged Tern
Chlidonias leucopterus
Caspian Tern
Hydroprogne caspia
Brown Noddy
Anous stolidus
Crested Tern
Thalasseus bergii
Common Tern
Sterna hirundo
Lesser Crested Tern
Thalasseus bengalensis
Brown-headed Gull
Chroicocephalus brunnicephalus
Lesser Noddy
Anous tenuirostris
Sandwich Tern
Thalasseus sandvicensis
📅 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 | Coiba National Park | 🇵🇦 Panama | |
| 2 | Cabo Blanco Absolute Nature Reserve | 🇨🇷 Costa Rica | |
| 3 | Manuel Antonio National Park | 🇨🇷 Costa Rica | |
| 4 | Yala National Park | 🇱🇰 Sri Lanka | |
| 5 | Daintree National Park | 🇦🇺 Australia | |
| 6 | Corcovado National Park | 🇨🇷 Costa Rica | |
| 7 | Bastimentos Island National Marine Park | 🇵🇦 Panama | |
| 8 | Noosa National Park | 🇦🇺 Australia | |
| 9 | Santa Rosa National Park | 🇨🇷 Costa Rica | |
| 10 | Jaragua National Park | 🇩🇴 Dominican Republic | |
| 11 | Las Baulas Marine National Park | 🇨🇷 Costa Rica | |
| 12 | Machalilla National Park | 🇪🇨 Ecuador | |
| 13 | Arrecifes de Cozumel National Park | 🇲🇽 Mexico | |
| 14 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 15 | Marino Ballena National Park | 🇨🇷 Costa Rica | |
| 16 | Everglades National Park | 🇺🇸 United States |
Quick answers
What are the chances of seeing a Bridled Tern in Yala National Park?
About 1% of visitor-days record a Bridled Tern sighting in Yala National Park, based on 8 observer-days of citizen-science data from GBIF.
When is the best time to see Bridled Tern in Yala National Park?
December has the highest sighting rate for Bridled Tern in Yala National Park in our monthly data.