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#0763 · 🐦 birds

Common Loon

🇳🇱 IJsduiker ·Gavia immer

LCleast concern 🐦 Birds 📍 in the Netherlands
Common Loon, photo 1 of 8
1/8 © Rebecca Scott · CC BY-NC 4.0

what is it?

The common loon or great northern diver ( Gavia immer ) is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes a broad black head and neck with a greenish, purplish, or bluish sheen, blackish or blackish-grey upperparts, and pure white underparts except some black on the undertail coverts and vent. Non-breeding adults are brownish with a dark neck and head marked with dark grey-brown. Their upperparts are dark...

base stats

  • NL sightings 41iNaturalist, research grade
  • worldwide 70,399iNaturalist observations
  • weight 5.5 kgadult, up to
  • threat LCleast concern

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • Spotted 41 times in the Netherlands on iNaturalist.
  • 70,399 observations worldwide on iNaturalist.
  • Weighs up to about 5.5 kg.
  • Scientifically named by Morten Thrane Brünnich in 1764 (262 years ago).

fact sheet

English
Common Loon
Nederlands
IJsduiker
scientific name
Gavia immer
class
Aves
order
Gaviiformes
family
Gaviidae
IUCN Red List
LC · least concern
sightings in NL
41
sightings in Europe
2,483
sightings worldwide
70,399
GBIF records in NL
24,216
weight
5.5 kg
length
—
lifespan
—
named
1764 by Morten Thrane Brünnich

IUCN in Dutch: niet bedreigd. Blank means the sources don't say.

relatives· Gaviidae

Sources: iNaturalist taxon 4626, Wikidata Q190342, GBIF 2481962, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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