Hartlaub's Gull
Chroicocephalus hartlaubii
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderCharadriiformes (Caradriformes)
- FamilyLaridae (Gulls, Terns, and Skimmers)
- GenusChroicocephalus (Masked Gulls and allies)
- SpeciesChroicocephalus hartlaubii (Hartlaub's Gull)
Hartlaub's gull (Chroicocephalus hartlaubii) is a small gull in the genus Chroicocephalus. It was formerly (as with other related gulls) placed in the genus Larus until genetic research demonstrated that the old broad view of that genus was paraphyletic. In the past it had sometimes been treated as a subspecies of the Australasian silver gull (C. novaehollandiae), but is now treated as a separate species; current genetic evidence suggests its closest relative is not the silver gull but the African and South American grey-headed gull (C. cirrocephalus), and in particular the African subspecies of it C. c. poiocephalus (with the possibility that C. cirrocephalus is paraphyletic with respect to C. hartlaubii: Černý & Natale 2022, Fig. 6). The species' name commemorates the German physician and zoologist, Gustav Hartlaub. Wikipedia →
<5% of wildlife watchers report a Hartlaub's Gull sighting in Garden Route National Park, based on 34 days of visitor records from GBIF citizen-science data.
Closest Relatives at Garden Route National Park
Grey-hooded Gull
Chroicocephalus cirrocephalus
Dominican Gull
Larus dominicanus
Crested Tern
Thalasseus bergii
Sandwich Tern
Thalasseus sandvicensis
Common Tern
Sterna hirundo
Caspian Tern
Hydroprogne caspia
Lesser Black-backed Gull
Larus fuscus
Whiskered Tern
Chlidonias hybrida
White-winged Tern
Chlidonias leucopterus
Roseate Tern
Sterna dougallii
Little Tern
Sternula albifrons
Blacksmith Lapwing
Vanellus armatus
📅 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
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Namib-Naukluft National Park | 🇳🇦 Namibia | |
| 2 | Table Mountain National Park | 🇿🇦 South Africa | |
| 3 | Garden Route National Park | 🇿🇦 South Africa | |
| 4 | Addo Elephant National Park | 🇿🇦 South Africa | |
| 5 | iSimangaliso Wetland Park | 🇿🇦 South Africa |
Quick answers
What are the chances of seeing a Hartlaub's Gull in Garden Route National Park?
About 4% of wildlife watchers report a Hartlaub's Gull sighting in Garden Route National Park, based on 34 days of visitor records from GBIF citizen-science data.
When is the best time to see Hartlaub's Gull in Garden Route National Park?
February has the highest sighting rate for Hartlaub's Gull in Garden Route National Park in our monthly data.