Lesser Black-backed Gull
Larus fuscus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusLarus (Large White-headed Gulls)
- SpeciesLarus fuscus (Lesser Black-backed Gull)
Closest Relatives at Rocky Mountain National Park
Ring-billed Gull
Larus delawarensis
California Gull
Larus californicus
American Herring Gull
Larus smithsonianus
Iceland Gull
Larus glaucoides
Larus pipixcan
Leucophaeus pipixcan
Bonaparte's Gull
Chroicocephalus philadelphia
Sabine's Gull
Xema sabini
Forster's Tern
Sterna forsteri
Caspian Tern
Hydroprogne caspia
Black Tern
Chlidonias niger
Spotted Sandpiper
Actitis macularius
Wilson's Snipe
Gallinago delicata
📅 Monthly Probability
Fewer than 5 records of Lesser Black-backed Gull at Rocky Mountain 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