Monitoring the courtship flight trajectory of Latham's snipe () using microphone arrays.

This study is the first to quantitatively measure the courtship display flights of Latham's snipe (), which is a "near threatened" species as of 2022 (IUCN red list of threatened species). By using a 16-channel microphone array and 8-channel microphone arrays, we localized the fine-scale movements of courtship flights of one male performing at high altitude and high speed, and we estimated the direction from which each sound arrived using robot audition. Preliminary analyses of the azimuthal and elevation angles of the courtship flights partially revealed a fine-scale flight trajectory.

Auditory Survey of Endangered Eurasian Bittern Using Microphone Arrays and Robot Audition.

Bioacoustics monitoring has become increasingly popular for studying the behavior and ecology of vocalizing birds. This study aims to verify the practical effectiveness of localization technology for auditory monitoring of endangered Eurasian bittern (Botaurus stellaris) which inhabits wetlands in remote areas with thick vegetation. Their crepuscular and highly secretive nature, except during the breeding season when they vocalize advertisement calls, make them difficult to monitor.

A spatiotemporal analysis of acoustic interactions between great reed warblers () using microphone arrays and robot audition software HARK.

Acoustic interactions are important for understanding intra- and interspecific communication in songbird communities from the viewpoint of soundscape ecology. It has been suggested that birds may divide up sound space to increase communication efficiency in such a manner that they tend to avoid overlap with other birds when they sing. We are interested in clarifying the dynamics underlying the process as an example of complex systems based on short-term behavioral plasticity.