Singing through the noise: how helicopter noise affects bird song in Hawaii’s protected natural areas
Human-produced noise has been shown to have negative effects on birds, including decreased breeding success, increased flushing behavior, and changes in vocalization patterns. Birds native to Hawai’i are among the most threatened in the world, and helicopter noise in Hawai’i’s forests could be another stressor native birds face in addition to disease, habitat loss, and predation by introduced species. The number of helicopter overflights in Hawai’i Volcanoes National Park (HAVO) is one of the highest in the National Park system and they often fly over the park at very low altitudes, creating extremely loud bursts of noise in designated wilderness areas within the park. HAVO has received countless complaints about helicopter noise from residents of nearby towns—if people are so affected by the noise, how might it affect the birds who live in the same area? Can the noise impact their ability to communicate with one another? These are the questions that drove my research, which I’ll discuss in this webinar!
*Please note the difference in webinar time – 1700 SAST*
(Photo in banner image of an ʻIʻiwi (Drepanis coccinea) by Ann Tanimoto-Johnson)