https://doi.org/10.5281/zenodo.15696782 https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study1258895879 39ca385b-6f25-402c-aa92-a76c89ecda0a https://ipt.inbo.be/resource?r=deltatrack Eric W.M. Stienen 0000-0002-4315-0936 Roland-Jan Buijs Jos de Visser Ruben Fijn 0000-0002-6233-2954 Sanne Govaert 0000-0002-8939-1305 Sander Lilipaly Maarten Platteeuw Peter Desmet 0000-0002-8442-8025 Peter Desmet peter.desmet@inbo.be 0000-0002-8442-8025 2026-01-23 eng DELTATRACK - Herring gulls (Larus argentatus, Laridae) and lesser black-backed gulls (Larus fuscus, Laridae) breeding at Neeltje Jans (Netherlands) is a bird tracking dataset published by the Research Institute for Nature and Forest (INBO). It contains animal tracking data for the project/study DELTATRACK, using trackers developed by Ornitela (https://www.ornitela.com). The study has been operational since 2020. In total 99 individuals of European herring gull (Larus argentatus) and lesser black-backed gull (Larus fuscus) have been tagged in the breeding colony at Neeltje Jans in the Netherlands, mainly to study their use of offshore waters near the Borssele windpark. Data are automatically synced with Movebank and from there periodically archived on Zenodo (see https://github.com/inbo/bird-tracking).This dataset was collected by the Research Institute for Nature and Forest (INBO), Waardenburg Ecology, Buijs Eco Consult and Deltamilieu Projecten. Funding was provided by the Wozep programme of Rijkswaterstaat on behalf of the Ministry of Economic Affairs of the Netherlands. All datasets from Wozep will be made publicly available, unless stated otherwise.Data have been standardized to Darwin Core using the movepub R package and are downsampled to the first GPS position per hour. The original data are available in Stienen et al. (2025, https://doi.org/10.5281/zenodo.15696782), a deposit of Movebank study 1258895879. animal movement animal tracking gps tracking altitude temperature biologging birds Ornitela Movebank frictionlessdata n/a Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://www.movebank.org/cms/webapp?gwt_fragment=page=studies,path=study1258895879 https://ipt.inbo.be/archive.do?r=deltatrack N/A -17.649687 8.328105 54.058372 16.075666 N/A kingdom Animalia unknown Peter Desmet peter.desmet@inbo.be 0000-0002-8442-8025 2026-01-23T17:03:34.177+01:00 dataset Stienen E W, Buijs R, de Visser J, Fijn R, Govaert S, Lilipaly S, Platteeuw M, Desmet P (2026). DELTATRACK - Herring gulls (Larus argentatus, Laridae) and lesser black-backed gulls (Larus fuscus, Laridae) breeding at Neeltje Jans (Netherlands). Version 1.5. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://ipt.inbo.be/resource?r=deltatrack&v=1.5 39ca385b-6f25-402c-aa92-a76c89ecda0a/v1.5.xml