Gull-billed Tern
Gelochelidon nilotica
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusGelochelidon (Gull-billed Terns)
- SpeciesGelochelidon nilotica (Gull-billed Tern)
Closest Relatives at Doñana National Park
Yellow-legged Gull
Larus michahellis
Black-headed Gull
Chroicocephalus ridibundus
Lesser Black-backed Gull
Larus fuscus
Slender-billed Gull
Chroicocephalus genei
Whiskered Tern
Chlidonias hybrida
Caspian Tern
Hydroprogne caspia
Little Tern
Sternula albifrons
Roseate Tern
Sterna dougallii
Sandwich Tern
Thalasseus sandvicensis
Mediterranean Gull
Ichthyaetus melanocephalus
Audouin's Gull
Ichthyaetus audouinii
Common Tern
Sterna hirundo
📅 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 Gull-billed Tern in Doñana National Park?
About 12% of visitor-days record a Gull-billed Tern sighting in Doñana National Park, based on 375 observer-days of citizen-science data from GBIF.
When is the best time to see Gull-billed Tern in Doñana National Park?
July has the highest sighting rate for Gull-billed Tern in Doñana National Park in our monthly data.