# Barnacle goose (*Branta leucopsis*)

Canonical page: https://creaturedata.com/animals/barnacle-goose  
Data as of: 2026-11-11

The barnacle goose (Branta leucopsis) is a bird in the waterfowl subgroup, belonging to the family Anatidae in the order Anseriformes. It is a medium-sized, migratory, terrestrial herbivore of grassland, with an adult body mass of 1.684 kg and a wingspan of 1.08 m. It lays one clutch per year of 4.5 eggs, which are incubated for 24.5 days, and reaches sexual maturity at 2 years. The barnacle goose is listed as Least Concern on the IUCN Red List, which is not a threatened category.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 1.59 kg – 1.79 kg |
| Length | Not recorded |
| Wingspan | 1.08 m |
| Lifespan | 26.9 years |
| Diet | Herbivore |
| Longest recorded lifespan | 28.2 years |
| Main food | Not recorded |
| Habitat | grassland |
| Egg incubation | 24.5 days |
| Young per litter or clutch | 4.5 |
| Age at maturity | 2 years |
| Litters or clutches a year | 1 |
| Lifestyle | Terrestrial |
| Migration | Migratory |
| Conservation status | Least Concern (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Anseriformes
- family: Anatidae
- genus: Branta
- species: *Branta leucopsis* (Bechstein, 1803)

Synonyms: *Anas leucopsis*

## Common questions

### What kind of animal is the barnacle goose?

The barnacle goose is a bird in the waterfowl subgroup. It belongs to the family Anatidae and the genus Branta.

### How heavy is a barnacle goose?

An adult Barnacle goose weighs 1.684 kg, with reported values from 1.586 kg to 1.79 kg. Its wingspan is 1.08 m.

### What does the barnacle goose eat?

The barnacle goose is a herbivore. It forages on the ground and lives in grassland.

### Is the barnacle goose endangered?

No. The barnacle goose is listed as Least Concern on the IUCN Red List, which is not a threatened category.

### How long does a barnacle goose live?

The barnacle goose has a lifespan of 26.9 years, with values up to 28.17 years reported.

### How many eggs does a barnacle goose lay?

The barnacle goose lays 4.5 eggs per clutch and has 1 clutch per year. The eggs are incubated for 24.5 days.

### Is the barnacle goose migratory?

Yes, the barnacle goose is migratory. Its geographic range covers 178,700 km².

## Sources

- [An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles](https://doi.org/10.6084/m9.figshare.3563457.v1), CC0 1.0, E096-269. Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
- [AVONET: morphological, ecological and geographical data for all birds](https://doi.org/10.6084/m9.figshare.16586228.v7), CC BY 4.0, v7. Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7
- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Wikimedia Commons](https://commons.wikimedia.org), per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed), 2026-11-11. Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
- [Wikidata](https://www.wikidata.org), CC0 1.0, 2026-11-11. Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
- [Wikipedia (English)](https://en.wikipedia.org), CC BY-SA 4.0, 2026-11-11. Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

Cite as: Barnacle goose (Branta leucopsis). Retrieved from https://creaturedata.com/animals/barnacle-goose