Graylag Goose
Anser anser (Linnaeus, 1758)
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

A Greylag Goose (Anser anser) in St James's Park, London, England. Taken by myself with a Canon 5D and a 70-200mm f/2.8L lens.
Diliff · CC BY-SA 3.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
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". Greylag geese travel to their northerly breeding grounds in spring, nesting on moorlands, in marshes, around lakes and on coastal islands. They normally mate for life and nest on the ground among vegetation.
Wikipedia contributors, Greylag goose; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T03:23:59.813404+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Anser anser (Linnaeus, 1758)
- Name authority
- (Linnaeus, 1758)
- Common name
- Graylag Goose
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Anseriformes
- Family
- Anatidae
- Genus
- Anser
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classAves
- orderAnseriformes
- familyAnatidae Leach, 1820
- genusAnser Brisson, 1760
- speciesAnser anser (Linnaeus, 1758)
Close classified relatives
These entries share the source’s genus, Anser. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Pink-footed GooseAnser brachyrhynchus Baillon, 1834 | AnatidaeChordata | Accepted speciesRecorded extant |
| Bar-headed GooseAnser indicus (Latham, 1790) | AnatidaeChordata | Accepted speciesRecorded extant |
| Ross's GooseAnser rossii Cassin, 1861 | AnatidaeChordata | Accepted speciesRecorded extant |
| Emperor GooseAnser canagicus (Sevastianov, 1802) | AnatidaeChordata | Accepted speciesRecorded extant |
| Lesser White-fronted GooseAnser erythropus (Linnaeus, 1758) | AnatidaeChordata | Accepted speciesRecorded extant |
| Bean GooseAnser fabalis (Latham, 1787) | AnatidaeChordata | Accepted speciesRecorded extant |
| Blue GooseAnser caerulescens (Linnaeus, 1758) | AnatidaeChordata | Accepted speciesRecorded extant |
| Swan GooseAnser cygnoides (Linnaeus, 1758) | AnatidaeChordata | Accepted speciesRecorded extant |
| Greater White-fronted GooseAnser albifrons (Scopoli, 1769) | AnatidaeChordata | Accepted speciesRecorded extant |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
North America
Southern Asia
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=175028 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:679X7. Classification follows source parent identifiers. English common names may vary by region.