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 Royal National Park
Silver Gull
Chroicocephalus novaehollandiae
Crested Tern
Thalasseus bergii
Sooty Tern
Onychoprion fuscatus
Pacific Gull
Larus pacificus
Dominican Gull
Larus dominicanus
White-fronted Tern
Sterna striata
Common Tern
Sterna hirundo
Masked Lapwing
Vanellus miles
Terek Sandpiper
Xenus cinereus
Grey-tailed Tattler
Tringa brevipes
Pacific Golden-Plover
Pluvialis fulva
Red-necked Stint
Calidris ruficollis
📅 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 Royal National Park?
About 1% of visitor-days record a Caspian Tern sighting in Royal National Park, based on 44 observer-days of citizen-science data from GBIF.
When is the best time to see Caspian Tern in Royal National Park?
October has the highest sighting rate for Caspian Tern in Royal National Park in our monthly data.