# Chestnut teal (*Anas castanea*) Canonical page: https://creaturedata.com/animals/chestnut-teal Data as of: 2026-11-14 The chestnut teal (Anas castanea), also called the chestnut-breasted teal, is a waterfowl in the bird family Anatidae. It belongs to the small size class, and adults typically weigh about 624 g. It is an omnivore of wetland, and its IUCN Red List category is Least Concern, which is not a threatened category. ## Quick facts | Fact | Value | |---|---| | Weight | 590 g – 683 g | | Length | Not recorded | | Lifespan | Not recorded | | Diet | Aquatic predator | | Main food | Not recorded | | Habitat | wetland | | Egg incubation | 26 days | | Young per litter or clutch | 8.4 – 9.5 | | Litters or clutches a year | 1 | | Lifestyle | Aquatic | | Migration | Partial | | Brain mass | 3.66 g – 3.86 g (0.595% of body mass) | | Conservation status | Least Concern (IUCN) | | Countries on record | 1 country | ## Introduced range The Global Register of Introduced and Invasive Species lists it as introduced in 4 countries. Introduced: Belgium, Germany, Poland, United Kingdom. Source: https://griis.org/ (CC BY 4.0). ## Classification - kingdom: Animalia - phylum: Chordata - class: Aves - order: Anseriformes - family: Anatidae - genus: Anas - species: *Anas castanea* (Eyton, 1838) Synonyms: *Anas gracilipes*, *Anas punctata*, *Anas strenua*, *Mareca castanea*, *Micronetta punctata*, *Nettapus eyrensis*, *Nettion gracilipes*, *Nettion strenuum*, *Virago castanea alexanderi* ## Countries on record Countries where Catalogue of Life checklists list the species. Many checklists carry no country data, so the list is often incomplete. It is not a range map. Australia ## Common questions ### How heavy is the chestnut teal? Adults typically weigh about 624 g. It belongs to the small size class. ### What kind of animal is the chestnut teal? It is a bird, a waterfowl in the family Anatidae. Its scientific name is Anas castanea. ### Is the chestnut teal endangered? No. Its IUCN Red List category is Least Concern (LC), which is not a threatened category. ### How many eggs does the chestnut teal lay? A clutch has 9 or 10 eggs, with 1 clutch per year. The eggs are incubated for 26 days. ### Does the chestnut teal migrate? It is partially migratory. Its habitat is wetland. ### Is the chestnut teal an invasive species? The Global Register of Introduced and Invasive Species lists the chestnut teal as introduced in 4 countries: Belgium, Germany, Poland and United Kingdom, but does not flag it as invasive in any of them. ## 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 - [AnimalTraits: a curated animal trait database for body mass, metabolic rate and brain size](https://animaltraits.org/), CC0 1.0, 1.0.7. Herberstein, M.E., McLean, D.J., Lowe, E. et al. (2022) AnimalTraits: a curated animal trait database for body mass, metabolic rate and brain size. Scientific Data 9: 265. https://doi.org/10.1038/s41597-022-01364-9. Data: https://doi.org/10.5281/zenodo.6468938 - [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). - [Global Register of Introduced and Invasive Species (GRIIS)](https://griis.org/), CC BY 4.0, 2026-11-13. Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group. - [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: Chestnut teal (Anas castanea). Retrieved from https://creaturedata.com/animals/chestnut-teal