Sandwich Tern
Thalasseus sandvicensis
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusThalasseus (Crested Terns)
- SpeciesThalasseus sandvicensis (Sandwich Tern)
Closest Relatives at Table Mountain National Park
Crested Tern
Thalasseus bergii
Elegant Tern
Thalasseus elegans
Dominican Gull
Larus dominicanus
Hartlaub's Gull
Chroicocephalus hartlaubii
Common Tern
Sterna hirundo
Grey-hooded Gull
Chroicocephalus cirrocephalus
Caspian Tern
Hydroprogne caspia
White-winged Tern
Chlidonias leucopterus
Black-headed Gull
Chroicocephalus ridibundus
Antarctic Tern
Sterna vittata
Whiskered Tern
Chlidonias hybrida
Sabine's Gull
Xema sabini
📅 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 Sandwich Tern in Table Mountain National Park?
About 8% of visitor-days record a Sandwich Tern sighting in Table Mountain National Park, based on 430 observer-days of citizen-science data from GBIF.
When is the best time to see Sandwich Tern in Table Mountain National Park?
November has the highest sighting rate for Sandwich Tern in Table Mountain National Park in our monthly data.