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 Biotopo Cerro Cahuí
Sandwich Tern
Thalasseus sandvicensis
Laughing Gull
Leucophaeus atricilla
Caspian Tern
Hydroprogne caspia
Northern Jacana
Jacana spinosa
Spotted Sandpiper
Actitis macularius
Willet
Tringa semipalmata
Solitary Sandpiper
Tringa solitaria
Pomarine Jaeger
Stercorarius pomarinus
Least Sandpiper
Calidris minutilla
Greater Yellowlegs
Tringa melanoleuca
Killdeer
Charadrius vociferus
Black-necked Stilt
Himantopus mexicanus
📅 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 Biotopo Cerro Cahuí?
About 19% of visitor-days record a Royal Tern sighting in Biotopo Cerro Cahuí, based on 28 observer-days of citizen-science data from GBIF.
When is the best time to see Royal Tern in Biotopo Cerro Cahuí?
November has the highest sighting rate for Royal Tern in Biotopo Cerro Cahuí in our monthly data.