Effect of Call Types on White-Breasted Waterhen (Amaurornis phoenicurus) Response to Playbacks on Pratas Island, Taiwan

The White-breasted Waterhen (Amaurornis phoenicurus) is the only bird species known to breed on Pratas Island, Taiwan, for the past few decades. Since they are secretive and very difficult to observe, responses to different call playbacks were tested experimentally in the field to determine if call type affects response of birds to improve future surveys. Playbacks of two different call types (advertising call and aggressive call) were carried...