Acoustic behavior of endangered Hawaiian false killer whales

This dataset accompanies the study: Acoustic behavior of endangered Main Hawaiian Islands insular false killer whales *(Pseudorca crassidens) *and contains data and analyses used to characterize the pulsed call repertoire, nonlinear phenomena, and behavioral context of calling. Biologging tags (CATS and DTAG) were deployed on four individuals from two social clusters around the Main Hawaiian Islands between 2011 and 2024. The CATS tags were sampled at 96 kHz, and the DTAG at 240 kHz. Data was processed using Raven Pro and PAMGuard.

The repository includes the following:

Data inputs (kinematic/acoustic data tables)
Data used in the statistical analysis
Interobserver reliability test scores
Spreadsheets of call features from each trace extracted using the ROCCA module in PAMGuard for each call type
Examples of audio files used to generate spectrograms in the Supplementary material (S1)

A total of 5,940 high-quality possible focal pulsed calls were analyzed, from which 52 stereotyped call types were identified and categorized based on their fundamental frequency contours. Please cite this dataset and the associated Royal Society Open Science publication when using these data.