Bioacoustics

In collaboration with the U.H.-Hilo Listening Observatory for Hawaiian Ecosystems (LOHE)—a project of Hart Lab—bird song recorders were deployed at several locations in Pālehua in late 2015.

 

The recordings will identify the native birds which frequent the property and provide information on their distribution and abundance. The endangered O'ahu 'elepaio is known to nest on Gill 'Ewa Lands property, and 'apapane and 'amakihi have also been seen.

 

LOHE technicians use specialized software which converts bird vocalization audio files into visual spectrograms.

 

A LOHE researcher has developed a new algorithm to automatically detect 'amakihi songs among the numerous forest sounds recorded. For more on LOHE's work, please click here.