Bonaparte's Gull
Chroicocephalus philadelphia
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusChroicocephalus (Masked Gulls and allies)
- SpeciesChroicocephalus philadelphia (Bonaparte's Gull)
Closest Relatives at Big Cypress National Preserve
Royal Tern
Thalasseus maximus
Laughing Gull
Leucophaeus atricilla
Ring-billed Gull
Larus delawarensis
Forster's Tern
Sterna forsteri
Black Skimmer
Rynchops niger
Sandwich Tern
Thalasseus sandvicensis
Least Tern
Sternula antillarum
Caspian Tern
Hydroprogne caspia
Common Tern
Sterna hirundo
American Herring Gull
Larus smithsonianus
Lesser Black-backed Gull
Larus fuscus
Gull-billed Tern
Gelochelidon nilotica
📅 Monthly Probability
Fewer than 5 records of Bonaparte's Gull at Big Cypress National Preserve — 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