Dataset

HG_JUVENILE - Juvenile herring gulls (Larus argentatus, Laridae) hatched at the southern North Sea coast (Belgium)

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

HG_JUVENILE - Juvenile herring gulls (Larus argentatus, Laridae) hatched at the southern North Sea coast (Belgium) is a bird tracking dataset published by the Centre for Research on Ecology, Cognition and Behaviour of Birds at Ghent University and the Research Institute for Nature and Forest (INBO). It contains animal tracking data for the project/study HG_JUVENILE, using trackers developed by Interrex (http://www.interrex-tracking.com). The study has been operational since 2022. In total 204 individuals of European herring gull (Larus argentatus) have been tagged. 150 individuals were raised from egg by Ghent University researchers at the Wildlife Rescue Center in Ostend, completed several cognitive and behavioural tests when approximately three weeks old, and were released in the IJzermonding, Nieuwpoort (Belgium). 54 additional individuals were tagged and released in the wild to collect baseline data. The main goal of the study is to link cognitive performance in the lab to behaviour in the wild. Data are automatically synced with Movebank and from there periodically archived on Zenodo (see https://github.com/inbo/bird-tracking).

This dataset was collected using infrastructure provided by the ERC and Ghent University.

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 Allaert et al. (2026, https://doi.org/10.5281/zenodo.16960867), a deposit of Movebank study 2217728245.

Published: January 05, 2026 at 11:57

URL: https://ipt.inbo.be/resource?r=hg_juvenile

609,395
occurrence records
408
measurements and facts
1
taxa
1
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 609,191
100.0%
maximumDepthInMeters 609,395
100.0%
minimumDepthInMeters 609,395
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_DEPTH 609,395
100.0%
ON_LAND 545,443
89.5%

Measurement types

DNA derived data