Helpers Have Little to Laugh About: Group Structure and Vocalisation in the Laughing Kookaburra Dacelo novaeguineae

Authors:

Abstract
Reyer, Heinz-Ulrich & Schmidl, Dieter (1988). Helpers have little to laugh about: Group structure and vocalisation in the Laughing Kookaburra Dacelo novaeguineae. Emu 88, 150–160.Laughing Kookaburr...