O_VLIELAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) breeding and wintering on Vlieland (the Netherlands) is a bird tracking dataset published by the Netherlands Institute of Ecology (NIOO-KNAW), Sovon, Radboud University, the University of Amsterdam and the Research Institute for Nature and Forest (INBO). It contains animal tracking data collected during CHIRP (Cumulative Human Impact on biRd Populations) for the study O_VLIELAND using trackers developed by the University of Amsterdam Bird Tracking System (UvA-BiTS, http://www.uva-bits.nl). The study was operational from 2016 to 2021. In total 103 individuals of Eurasian oystercatchers (Haematopus ostralegus) have been tagged either as a breeding bird or while overwintering on the Wadden island Vlieland (the Netherlands), mainly to study how they respond to disturbances from aircraft. Data are uploaded from the UvA-BiTS database to Movebank and from there archived on Zenodo (see https://github.com/inbo/bird-tracking). No new data are expected. Data in this package are exported from Movebank study O_VLIELAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) breeding and wintering on Vlieland (the Netherlands) (Movebank Study ID 1605802367), which can be viewed at https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study1605802367. Fields in the data follow the Movebank Attribute Dictionary (http://vocab.nerc.ac.uk/collection/MVB) and are described in datapackage.json. Files Files are structured as a Frictionless Data Package. You can access all data in R via https://zenodo.org/record/5653891/files/datapackage.json using frictionless. datapackage.json: technical description of the data files. O_VLIELAND-reference-data.csv: reference data about the animals, tags and deployments. O_VLIELAND-gps-yyyy.csv.gz: GPS data recorded by the tags, grouped by year. O_VLIELAND-acceleration-yyyy.csv.gz: acceleration data recorded by the tags, grouped by year. O_VLIELAND-accessory-measurements-yyyy.csv.gz: behaviour categories derived from acceleration data, grouped by year.