This dataset contains manually labelled audio data of roding Eurasian Woodcock (Scolopax rusticola).
Description
Bioacoustic surveys of roding Eurasian Woodcock were conducted in Baden-Württemberg, Germany in May and June in 2020 and 2021. The audio data of this collection was used for the evaluation of BirdNET as a means for the automated analysis of large quantities of audio data. The original dataset consisted of 12.236 minutes of recording, which were reviewed manually. Each call element of a male roding Woodcock (i.e. croak, whistle, chasing male) was annotated. Individual call elements were subsequently clustered into so called roding events, which are ecologically more meaningful. BirdNET was then tested against this manually labelled dataset.
The dataset uploaded to zenodo contains:
audio data of 2545 woodcock call element selections with a duration of 145 minutes
audio data of 782 aggregated woodcock roding events with a duration of 115 minutes
selection tables for call elements and roding events
associated metadata
Audio information in between roding events (i.e. non woodcock audio) ist not included due to data privacy reasons (see below).
Selections
Woodcock call elements were manually selected/annotated in Raven Pro with bounding boxes. For this dataset, all selections with a duration of less than 3 seconds were extended symmetrically until 3 seconds were reached. This may result in overlapping selections in the case of croaks that are directly followed by a whistle. Signals at the beginning or end of these selections may thus be included twice.
Roding events
A roding event was defined as a continuous series of Woodcock call elements with a maximum gap of six seconds between consecutive elements. Each event can be interpreted as a roding bird that passes by the recording location, similar to a typical woodcock roding survey conducted by a human observer. Roding events were not created with the extended 3 seconds clips described above, but with the original bounding box selections drawn in Raven Pro.
Audio files
selections.zip: each wav-file contains a single selections. Filenames correspond to the column selec in the table selections.csv
events.zip: each wav-file contains a single roding event, typically consisting of multiple call elements (croaks and/or whistles). In the case of faint signals of distant birds, roding events may consist of a single call element only. Filenames correspond to the column event.id in the...