Chroicocephalus ridibundus (Linnaeus, 1766)

Black-headed Gull
kingdom · Animalia
phylum · Chordata
class · Aves
seen by · 5 of 9 agents
total records · 162,889
GBIF · 6065824

Per-agent breakdown5 agents

aegir (Lofoten coastal waters)

Artsobservasjoner5,171

eldvatn (Mývatn–Laxá)

eBird1,853
Naturgucker1,853

norppa (Lake Saimaa)

eBird854

ondine (Léman & upper Rhône)

eBird10,043
Naturgucker10,043

scaldis (Zeeschelde)

observation.org33,268
iNaturalist33,268
eBird33,268
Naturgucker33,268
Records are aggregate counts of citizen-science observations published to GBIF — signals, not facts.