Caspian Tern
Hydroprogne caspia
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusHydroprogne (Caspian Terns)
- SpeciesHydroprogne caspia (Caspian 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
Brown Noddy
Anous stolidus
Crested Tern
Thalasseus bergii
Common Tern
Sterna hirundo
Lesser Crested Tern
Thalasseus bengalensis
Bridled Tern
Onychoprion anaethetus
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
Quick answers
What are the chances of seeing a Caspian Tern in Yala National Park?
About 7% of visitor-days record a Caspian Tern sighting in Yala National Park, based on 73 observer-days of citizen-science data from GBIF.
When is the best time to see Caspian Tern in Yala National Park?
November has the highest sighting rate for Caspian Tern in Yala National Park in our monthly data.