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 Katmai National Park
Glaucous-winged Gull
Larus glaucescens
Short-billed Gull
Larus brachyrhynchus
Bonaparte's Gull
Chroicocephalus philadelphia
Arctic Tern
Sterna paradisaea
Black-legged Kittiwake
Rissa tridactyla
Slaty-backed Gull
Larus schistisagus
American Herring Gull
Larus smithsonianus
Aleutian Tern
Onychoprion aleuticus
Sabine's Gull
Xema sabini
Glaucous Gull
Larus hyperboreus
Greater Yellowlegs
Tringa melanoleuca
Spotted Sandpiper
Actitis macularius
📅 Monthly Probability
Fewer than 5 records of Caspian Tern at Katmai National Park — not enough to chart months honestly.
☀️ 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