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It is found in arctic and subarctic regions of North America, Europe, and Asia during the breeding season, and migrates south for the winter. Historically, it was also known as \"rough-legged falcon\" in such works as John James Audubon's The Birds of America.\nNests are typically located on cliffs, bluffs or in trees. The clutch sizes are variable with food availability, but usually three to five eggs are laid. They hunt over open land, feeding primarily on small mammals, mainly lemmings and voles. Along with the kestrels, kites, and osprey, this is one of the few birds of prey to hover regularly.","source_id":"wikipedia","source_url":"https://en.wikipedia.org/wiki/Rough-legged_buzzard","revision":1380703367,"licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/","licence_tier":"amber","share_alike":true,"display_ok":true,"attribution":"From the Wikipedia article “Rough-legged buzzard” (https://en.wikipedia.org/w/index.php?title=Rough-legged_buzzard&oldid=1380703367), by Wikipedia contributors, licensed under CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/).","retrieved_at":"2026-11-11 16:33:13+00","source_release_id":"wikipedia:2026-11-11"}],"external_ids":[{"source":"col","label":"Catalogue of Life","external_id":"NYVC","url":"https://www.catalogueoflife.org/data/taxon/NYVC","match_type":"backbone","confidence":1,"asserted_by":"col_xr:316691"},{"source":"avibase","external_id":"rolhaw","url":null,"match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"avibase"},{"source":"dyntaxa","external_id":"102110","url":null,"match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"dyntaxa"},{"source":"enwiki","external_id":"Rough-legged buzzard","url":"https://en.wikipedia.org/wiki/Rough-legged_buzzard","match_type":"wikidata_sitelink","confidence":1,"asserted_by":"wikidata:2026-11-11","label":"Wikipedia"},{"source":"inaturalist","external_id":"5200","url":"https://www.inaturalist.org/taxa/5200","match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"iNaturalist"},{"source":"taicol","external_id":"taicol: 54618","url":null,"match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"taicol"},{"source":"taxref","external_id":"2630","url":"https://inpn.mnhn.fr/espece/cd_nom/2630","match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"TAXREF"},{"source":"wikidata","external_id":"Q26407","url":"https://www.wikidata.org/wiki/Q26407","match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"Wikidata"},{"source":"worms","external_id":"159110","url":"https://www.marinespecies.org/aphia.php?p=taxdetails&id=159110","match_type":"source_asserted","confidence":null,"asserted_by":"col_xr:316691","label":"WoRMS"},{"source":"iucn","label":"IUCN Red List","external_id":"22695973/0","url":"https://www.iucnredlist.org/details/22695973/0","match_type":"wikidata_P627","confidence":1,"asserted_by":"wikidata:2026-11-11"}],"sources":[{"source_id":"col_xr","name":"Catalogue of Life eXtended Release","url":"https://www.checklistbank.org/dataset/316691","licence":"CC BY 4.0","licence_url":"https://creativecommons.org/licenses/by/4.0/","citation":"Catalogue of Life (2026). 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Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).","release":"2026-11-11","retrieved_at":"2026-11-11"},{"source_id":"wikipedia","name":"Wikipedia (English)","url":"https://en.wikipedia.org","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/","citation":"Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).","release":"2026-11-11","retrieved_at":"2026-11-11"}]}