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Amsterdam"},"authorIdentifierScheme":{"typeName":"authorIdentifierScheme","multiple":false,"typeClass":"controlledVocabulary","value":"ORCID"},"authorIdentifier":{"typeName":"authorIdentifier","multiple":false,"typeClass":"primitive","value":"0000-0002-9447-8587"}}]},{"typeName":"datasetContact","multiple":true,"typeClass":"compound","value":[{"datasetContactName":{"typeName":"datasetContactName","multiple":false,"typeClass":"primitive","value":"Groningen Institute for Evolutionary Life Sciences"},"datasetContactAffiliation":{"typeName":"datasetContactAffiliation","multiple":false,"typeClass":"primitive","value":"University  of Groningen"}}]},{"typeName":"dsDescription","multiple":true,"typeClass":"compound","value":[{"dsDescriptionValue":{"typeName":"dsDescriptionValue","multiple":false,"typeClass":"primitive","value":"Wind conditions play a major role in determining how birds negotiate ecological barriers during long-distance migration. Migrants typically minimize flights over barriers in opposing winds, while crossing the same barriers directly in supportive winds. Nevertheless, even in supportive conditions, barrier-crossings likely involve risk-mitigating behaviors, including the use of stepping stones. \nThis dataset combines GPS-tracking data from 19 Eleonora’s falcons (2012–2022) with atmospheric reanalysis wind data to investigate seasonal ocean-crossings across the Indian Ocean and Mozambique Channel. Data support analyses of wind support, flight effort, and stepping-stone island use. Islands were used more frequently during spring crossings,  particularly under weak wind support. These data underpin the manuscript “Falcons use wind assistance and remote islands to mitigate risk during ocean-crossings”."},"dsDescriptionDate":{"typeName":"dsDescriptionDate","multiple":false,"typeClass":"primitive","value":"2025-09-12"}}]},{"typeName":"subject","multiple":true,"typeClass":"controlledVocabulary","value":["Earth and Environmental Sciences","Medicine, Health and Life Sciences"]},{"typeName":"keyword","multiple":true,"typeClass":"compound","value":[{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"bird migration"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"risk-avoidance"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"stepping stones"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"stop-over behaviour"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"weather"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"barrier  crossing"}}]},{"typeName":"publication","multiple":true,"typeClass":"compound","value":[{"publicationCitation":{"typeName":"publicationCitation","multiple":false,"typeClass":"primitive","value":"Chen M, Viana DS, Figuerola J, Gangoso L, Vansteelant WMG (2025). Seasonal variation in trans-oceanic flight and island use in a migratory falcon. Behavioral Ecology, in press."}}]},{"typeName":"depositor","multiple":false,"typeClass":"primitive","value":"Bakker, Joke"},{"typeName":"dateOfDeposit","multiple":false,"typeClass":"primitive","value":"2025-09-12"}]},"dansDataVaultMetadata":{"displayName":"Data Vault Metadata","name":"dansDataVaultMetadata","fields":[{"typeName":"dansDataversePid","multiple":false,"typeClass":"primitive","value":"doi:10.34894/BZJAST"},{"typeName":"dansDataversePidVersion","multiple":false,"typeClass":"primitive","value":"1.1"},{"typeName":"dansBagId","multiple":false,"typeClass":"primitive","value":"urn:uuid:0076735d-64a8-4342-bb6c-9d02a840709b"},{"typeName":"dansNbn","multiple":false,"typeClass":"primitive","value":"urn:nbn:nl:ui:13-9d7cd048-47a6-4522-a215-1a0e60d1f6da"}]}},"files":[{"description":"A KML file containing autumn-specific boundary line features used to identify boundary-crossing events during autumn 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