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#0619 · 🐦 birds

Common Merganser

🇳🇱 Grote zaagbek ·Mergus merganser

LCleast concern 🐦 Birds 📍 in the Netherlands
Common Merganser, photo 1 of 10
1/10 © brian stahls · CC BY-NC 4.0

what is it?

The common merganser (North American) or goosander (Eurasian) ( Mergus merganser ) is a large duck of rivers and lakes in forested areas of Europe, northern and central Asia, and North America.

base stats

  • NL sightings 534iNaturalist, research grade
  • worldwide 133,500iNaturalist observations
  • weight 1.7 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 534 times in the Netherlands on iNaturalist.
  • 133,500 observations worldwide on iNaturalist.
  • Weighs up to about 1.7 kg.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Common Merganser
Nederlands
Grote zaagbek
scientific name
Mergus merganser
class
Aves
order
Anseriformes
family
Anatidae
IUCN Red List
LC · least concern
sightings in NL
534
sightings in Europe
40,537
sightings worldwide
133,500
GBIF records in NL
226,317
weight
1.7 kg
length
—
lifespan
—
named
1758

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

relatives· Anatidae

Sources: iNaturalist taxon 7004, Wikidata Q180991, GBIF 9537647, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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