Greylag Goose
Greylag GooseGreylag GooseGreylag GooseGreylag Goose

Greylag Goose

Anser anser

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
90–100% · Very likely
overall probability at Thingvellir National Park
224 Verified records at Thingvellir National Park
April Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The greylag goose (Anser anser) is a species of large goose in the waterfowl family Anatidae and the type species of the genus Anser. It has mottled and barred grey and white plumage and an orange beak and pink legs. A large bird, it measures between 74 and 91 centimetres (29 and 36 in) in length, with an average weight of 3.3 kilograms (7 lb 4 oz). Its distribution is widespread, with birds from the north of its range in Europe and Asia often migrating southwards to spend the winter in warmer places, although many populations are resident, even in the north. It is the ancestor of most breeds of domestic goose, having been domesticated at least as early as 1360 BCE. The genus name and specific epithet are from anser, the Latin for "goose". In the USA, its name has been spelled "graylag". Wikipedia →

90–100% of wildlife watchers report a Greylag Goose sighting in Thingvellir National Park, based on 224 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

90–100
Jan
90–100
Feb
90–100
Mar
90–100
Apr
90–100
May
90–100
Jun
90–100
Jul
90–100
Aug
90–100
Sep
90–100
Oct
90–100
Nov
90–100
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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 Thingvellir National Park 🇮🇸 Iceland
90–100%
2 Hortobágy National Park 🇭🇺 Hungary
80–90%
3 Fertő-Hanság National Park 🇭🇺 Hungary
80–90%
4 Kiskunság National Park 🇭🇺 Hungary
60–70%
5 Vatnajokull National Park 🇮🇸 Iceland
50–60%
6 Wadden Sea National Park 🇩🇪 Germany
50–60%
7 Biebrza National Park 🇵🇱 Poland
50–60%
8 Doñana National Park 🇪🇸 Spain
50–60%
9 Keoladeo National Park 🇮🇳 India
50–60%
10 Cairngorms National Park 🇬🇧 United Kingdom
40–50%
11 Bavarian Forest National Park 🇩🇪 Germany
30–40%
12 Białowieża National Park 🇵🇱 Poland
20–30%
13 Snowdonia National Park 🇬🇧 United Kingdom
10–20%
14 Kaziranga National Park 🇮🇳 India
10–20%
15 Sierra de Guadarrama National Park 🇪🇸 Spain
5–10%
16 Table Mountain National Park 🇿🇦 South Africa
<5%
17 Monfragüe National Park 🇪🇸 Spain
<5%
18 Pyrénées National Park 🇫🇷 France
<5%
19 Ranthambore National Park 🇮🇳 India
<5%
20 Satpura National Park 🇮🇳 India
<5%
21 Sierra Nevada National Park 🇪🇸 Spain
<5%
22 Jim Corbett National Park 🇮🇳 India
<5%
23 Chitwan National Park 🇳🇵 Nepal
<5%
24 Kanha National Park 🇮🇳 India
<5%
25 Hluhluwe-Imfolozi Park 🇿🇦 South Africa
Insufficient data
26 Virunga National Park 🇨🇩 Democratic Republic of the Congo
Insufficient data
27 iSimangaliso Wetland Park 🇿🇦 South Africa
Insufficient data
28 Triglav National Park 🇸🇮 Slovenia
Insufficient data
29 Garden Route National Park 🇿🇦 South Africa
Insufficient data
30 Kruger National Park 🇿🇦 South Africa
Insufficient data
31 Cévennes National Park 🇫🇷 France
Insufficient data
32 Bandhavgarh National Park 🇮🇳 India
Insufficient data
33 Tatra National Park 🇸🇰 Slovakia
Insufficient data
34 Gauja National Park 🇱🇻 Latvia
Insufficient data
35 Picos de Europa National Park 🇪🇸 Spain
Insufficient data

Quick answers

What are the chances of seeing a Greylag Goose in Thingvellir National Park?

About 94% of wildlife watchers report a Greylag Goose sighting in Thingvellir National Park, based on 224 days of visitor records from GBIF citizen-science data.

When is the best time to see Greylag Goose in Thingvellir National Park?

April has the highest sighting rate for Greylag Goose in Thingvellir National Park in our monthly data.

← Back to Thingvellir National Park