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 Gros Morne National Park
American Herring Gull
Larus smithsonianus
Great Black-backed Gull
Larus marinus
Ring-billed Gull
Larus delawarensis
Common Tern
Sterna hirundo
Black-legged Kittiwake
Rissa tridactyla
Iceland Gull
Larus glaucoides
Arctic Tern
Sterna paradisaea
Lesser Black-backed Gull
Larus fuscus
Glaucous Gull
Larus hyperboreus
Black-headed Gull
Chroicocephalus ridibundus
Common Gull
Larus canus
Wilson's Snipe
Gallinago delicata
📅 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 Gros Morne National Park?
About 20% of visitor-days record a Caspian Tern sighting in Gros Morne National Park, based on 200 observer-days of citizen-science data from GBIF.
When is the best time to see Caspian Tern in Gros Morne National Park?
September has the highest sighting rate for Caspian Tern in Gros Morne National Park in our monthly data.