Royal Tern
Thalasseus maximus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusThalasseus (Crested Terns)
- SpeciesThalasseus maximus (Royal Tern)
Closest Relatives at Las Baulas Marine National Park
Sandwich Tern
Thalasseus sandvicensis
Elegant Tern
Thalasseus elegans
Laughing Gull
Leucophaeus atricilla
Caspian Tern
Hydroprogne caspia
Common Tern
Sterna hirundo
Brown Noddy
Anous stolidus
Black Tern
Chlidonias niger
Gull-billed Tern
Gelochelidon nilotica
Bridled Tern
Onychoprion anaethetus
Sabine's Gull
Xema sabini
Larus pipixcan
Leucophaeus pipixcan
Least Tern
Sternula antillarum
📅 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 Royal Tern in Las Baulas Marine National Park?
About 31% of visitor-days record a Royal Tern sighting in Las Baulas Marine National Park, based on 246 observer-days of citizen-science data from GBIF.
When is the best time to see Royal Tern in Las Baulas Marine National Park?
December has the highest sighting rate for Royal Tern in Las Baulas Marine National Park in our monthly data.