Eurasian Teal — LLMpedia

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Eurasian Teal The Eurasian Teal is a small dabbling Anas species described by Carl Linnaeus in 1758 and recognized across palaearctic flyways used historically by Marco Polo, mapped during expeditions funded by the Royal Geographical Society and referenced in field studies by scientists at the British Trust for Ornithology, Smithsonian Institution, and Natural History Museum, London. It is listed as Least Concern by the IUCN and has been the subject of research by teams at the Max Planck Society, University of Oxford, University of Cambridge, and the United States Fish and Wildlife Service for studies on migration, genetics, and wetland conservation.

Taxonomy and systematics

The Eurasian Teal was named in the 10th edition of Systema Naturae by Carl Linnaeus and placed in the genus Anas, a genus reviewed by ornithologists at the Linnean Society of London and revised in molecular studies from the Sanger Institute and the National Center for Biotechnology Information. Phylogenetic analyses published with datasets shared via the Global Biodiversity Information Facility and reviewed by teams at Harvard University, University of California, Berkeley, and the Max Planck Institute for Ornithology clarified relationships with the Green-winged Teal and other Holarctic taxa, with subspecies delimitations debated in journals supported by the Royal Society and archived by the Biodiversity Heritage Library.

Adults display a distinctive chestnut head and a green lateral face patch noted in plates by artists exhibited at the Victoria and Albert Museum and described in handbooks produced by the British Ornithologists' Union and the Royal Society for the Protection of Birds. Morphometrics reported in monographs from Cornell Lab of Ornithology and surveys by the European Bird Census Council list small body size and sexual dimorphism compared to larger Anas platyrhynchos and smaller Anas acuta, with plumage variation documented in collections at the American Museum of Natural History and the Natural History Museum of Los Angeles County.

The species breeds across northern Eurasia recorded in atlases compiled by the European Commission and the Russian Academy of Sciences, wintering in regions monitored by the Convention on Migratory Species, Ramsar Convention sites, and national agencies such as the Ministry of Environment (France), Swedish Environmental Protection Agency, and Japanese Ministry of the Environment. Important stopover and wintering areas include wetlands along routes studied in projects funded by the European Union, the World Wildlife Fund, and the Wetlands International programme, with occurrences logged in databases managed by the Avian Knowledge Network and bird observatories like RSPB Minsmere and Vigo Bird Center.

Eurasian Teal feed by dabbling and were documented in behavioural studies at the Wageningen University, University of Helsinki, and University of Paris observing foraging in reedbeds similar to habitats protected by the Bern Convention and habitat restoration projects led by BirdLife International. Social structure and flocking dynamics were modeled by researchers affiliated with the Swiss Ornithological Institute, University of Copenhagen, and the Finnish Museum of Natural History, with predator–prey interactions involving raptors monitored by groups such as the Royal Society for the Protection of Birds, Helsinki Bird Observatory, and the Norwegian Ornithological Society.

Breeding biology, clutch size, and incubation periods were catalogued in field guides published by the Field Studies Council and longitudinal studies by the British Trust for Ornithology and University of Glasgow; nest-site selection often occurs in wetlands under protection by the Ramsar Convention and in breeding grounds within territories surveyed by the Russian Academy of Sciences and the Swedish Museum of Natural History. Juvenile development and fledging rates were analyzed in collaborative projects involving the Max Planck Institute for Ornithology, University of Oxford, and the Norwegian Institute for Nature Research.

Conservation status assessments have been coordinated by the IUCN with input from the European Bird Census Council, BirdLife International, and national agencies including the Royal Society for the Protection of Birds and the French Office for Biodiversity, highlighting threats from wetland drainage addressed under policies of the European Union and multilateral agreements like the Ramsar Convention and the Bern Convention. Hunting pressure regulated by laws in the United Kingdom, France, and Spain and habitat loss from agriculture evaluated by the Food and Agriculture Organization and European Environment Agency remain key concerns monitored via programs of the World Wildlife Fund and regional conservation trusts.

The species features in vernacular literature catalogued by the British Library and appears in art conserved at the Tate Gallery and the Louvre Museum, while hunting traditions and game regulations involving the species are recorded in statutes from the United Kingdom Parliament, French National Assembly, and historical treaties archived by the National Archives (UK). Citizen science contributions through platforms run by the Royal Society for the Protection of Birds, eBird (Cornell Lab of Ornithology), and local bird clubs have informed management decisions by the European Commission and conservation NGOs such as BirdLife International and the World Wildlife Fund.