{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.duck","code":"thing-q3736439","url":"https://ver.cy/models/thing/q3736439/","name":"duck","alternateNames":["duckling","drake","Challandais","sawbill duck","canard haunch","domestic duck","English Rouen","Swedish Yellow duck","Silver Bantam","Khaki Campbell","Mulard","Elizabeth"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.LIV"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Waterfowl of the family Anatidae smaller than geese and swans, including wild species such as mallards, teals and sawbill ducks and domestic ducks bred from the mallard and the Muscovy duck for meat, eggs and feathers; male ducks are drakes and young are ducklings, and ducks are found on wetlands worldwide.","purpose":"Let an agent identify duck species and breeds, explain their biology and welfare, support birdwatching and poultry keeping, and address wildlife and food safety questions.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Anatidae waterfowl","Wild and domestic forms","Dabbling and diving groups","Wetland habitats"],"structure":{"bundles":[{"id":"identify","name":"Identify","description":"Which duck.","layers":[{"id":"species","name":"Species","description":"Wild species.","findings":[{"id":"species-finding","name":"Species","description":"Species.","questions":[{"text":"Which species is this duck, based on plumage, bill and behaviour?","kind":"definition"},{"text":"Is it a drake, female or juvenile?","kind":"definition"}]}]},{"id":"breeds","name":"Breeds","description":"Domestic breeds.","findings":[{"id":"breeds-finding","name":"Breeds","description":"Breeds.","questions":[{"text":"Which domestic breed is this, and what is it kept for?","kind":"provenance"},{"text":"How do Muscovy and mallard-derived breeds differ?","kind":"definition"}]}]}]},{"id":"wild","name":"Wild","description":"Wildlife.","layers":[{"id":"feeding","name":"Feeding","description":"Feeding ducks.","findings":[{"id":"feeding-finding","name":"Feeding","description":"Feeding.","questions":[{"text":"Is it appropriate to feed wild ducks, and what foods are safe, according to wildlife bodies?","kind":"provenance"},{"text":"Which local rules apply?","kind":"provenance"}]}]},{"id":"watching","name":"Watching","description":"Birdwatching.","findings":[{"id":"watching-finding","name":"Watching","description":"Birdwatching.","questions":[{"text":"Where and when can this species be seen?","kind":"provenance"},{"text":"How can sightings be recorded?","kind":"action"}]}]}]},{"id":"keeping","name":"Keeping","description":"Domestic ducks.","layers":[{"id":"care","name":"Care","description":"Husbandry.","findings":[{"id":"care-finding","name":"Care","description":"Husbandry.","questions":[{"text":"What housing, water and feed do domestic ducks need?","kind":"provenance"},{"text":"Which welfare rules apply?","kind":"provenance"}]}]},{"id":"disease","name":"Disease","description":"Avian influenza.","findings":[{"id":"disease-finding","name":"Disease","description":"Disease.","questions":[{"text":"Are there avian influenza restrictions in force here?","kind":"provenance"},{"text":"How should sick or dead birds be reported?","kind":"action"}]}]}]},{"id":"food","name":"Food","description":"Duck as food.","layers":[{"id":"safety","name":"Safety","description":"Cooking duck.","findings":[{"id":"safety-finding","name":"Safety","description":"Cooking.","questions":[{"text":"How should duck meat and eggs be cooked safely?","kind":"provenance"},{"text":"Which cuts and dishes are traditional?","kind":"provenance"}]}]},{"id":"hunting","name":"Hunting","description":"Hunting rules.","findings":[{"id":"hunting-finding","name":"Hunting","description":"Hunting.","questions":[{"text":"Which seasons and licences apply to duck hunting here?","kind":"provenance"},{"text":"Which species are protected?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify duck species from published field guides and report sightings.","Feed, house and monitor domestic ducks on their keeper's instructions."],"mustNot":["Disturb nesting ducks or approach them in ways that cause them to abandon nests.","Hunt or capture wild ducks outside lawful seasons and permits.","Feed wild ducks bread or other food that harms them or pollutes water.","Hide signs of avian influenza or other disease in a flock."],"requiresHuman":["Culling birds or reporting a suspected avian influenza outbreak."]},"ethics":{"considerations":["Ducks can suffer in intensive farming and from lead and pollution in wetlands.","Avian influenza in ducks can spread to poultry and people."],"affectedParties":["The ducks themselves","Keepers and farmers","People at risk from zoonotic disease"]},"owners":{"steward":"Nobody, for wild ducks, which are protected by law; the keeper, for domestic ducks.","roles":[],"masterSystems":["Species databases","Poultry keeper registers"]},"relations":[{"target":"Q178559","type":"parent","note":"registry parent class"},{"target":"Q1797813","type":"parent","note":"registry parent class"},{"target":"Q5113","type":"parent","note":"registry parent class"},{"target":"bird","type":"related","note":"category"},{"target":"poultry","type":"related","note":"category"},{"target":"shore","type":"related","note":"wetland habitat"},{"target":"meal","type":"related","note":"duck as food"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.duck","Wikidata: Q3736439 (https://www.wikidata.org/wiki/Q3736439)"]},"properties":{"applicability":"required","items":["Body mass:  kg - Body mass is measured with a suitable animal scale and varies with species, breed, age and condition.","Body length:  cm - Body length is measured from the bill tip to the tail tip using a defined ornithological measurement method.","Wingspan:  cm - Wingspan is measured between the tips of the extended wings and varies substantially among species."]},"recognition":{"applicability":"required","items":["Broad flat bills and webbed feet","Sexual dimorphism in many species","Geese and swans are larger with longer necks","Waterbirds with broad bills, webbed feet and waterproof plumage."]},"capabilities":{"applicability":"required","items":["identify duck species and breeds","explain duck biology and behaviour","support keeping domestic ducks","address feeding, wildlife and food safety questions"]},"hazards":{"applicability":"required","items":["Feeding bread to wild ducks","Avian influenza","Welfare issues in intensive farming"]},"interfaces":{"applicability":"required","items":["Wildlife protection and hunting laws","Animal welfare rules for poultry","Avian influenza controls"]},"context":{"applicability":"required","items":["Wildlife, poultry farming and recreation.","dabbling ducks","diving ducks","sawbill ducks","domestic duck breeds","ducklings and drakes"]}},"sources":[{"title":"Wikidata item Q3736439: duck","url":"https://www.wikidata.org/wiki/Q3736439","note":"identity and sense of the item"},{"title":"Wikipedia: Duck","url":"https://en.wikipedia.org/wiki/Duck","note":"general description of the item"}],"openQuestions":["Should each species be a separate entry?","How should bird databases be linked?","How should disease controls be localised?"],"resources":{"spec":"/models/things/publications/thing-q3736439/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q3736439/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T19:39:11Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:30+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}