Ring-billed Gull
Larus delawarensis
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusLarus (Large White-headed Gulls)
- SpeciesLarus delawarensis (Ring-billed Gull)
Closest Relatives at Isle Royale National Park
American Herring Gull
Larus smithsonianus
Bonaparte's Gull
Chroicocephalus philadelphia
Stilt Sandpiper
Calidris himantopus
Semipalmated Sandpiper
Calidris pusilla
Baird's Sandpiper
Calidris bairdii
Tryngites subruficollis
Calidris subruficollis
Spotted Sandpiper
Actitis macularius
Wilson's Snipe
Gallinago delicata
Greater Yellowlegs
Tringa melanoleuca
Solitary Sandpiper
Tringa solitaria
American Woodcock
Scolopax minor
Black-bellied Plover
Pluvialis squatarola
📅 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 Ring-billed Gull in Isle Royale National Park?
About 32% of visitor-days record a Ring-billed Gull sighting in Isle Royale National Park, based on 104 observer-days of citizen-science data from GBIF.
When is the best time to see Ring-billed Gull in Isle Royale National Park?
August has the highest sighting rate for Ring-billed Gull in Isle Royale National Park in our monthly data.