This study was part of the research project “Impact of introduced mammals and habitat loss on endemic birds of New Caledonia”, done in cooperation with the Direction de l’Environnement (Province Sud, New Caledonia), which issued all permits for this study, and financed by the Loro Parque Fundación (Spain), Polish Ministry of Science and Higher Education (Grant 2P04F 001 29), Conservation des Espèces et Populations Animales (France), La Fondation Nature et Découvertes (France), Fonds für bedrohte Papageien-Zoologische Gesellschaft für Arten-und Populationsschutz (Germany), and doctoral grants from Province Sud (to SR) and the University of Tasmania (to AL). We thank M. Broersen, C. Chatreau, P. de Pous, D. Dingemans, S. Duijns, B. Michielsen, E. Minnema, L. Nijdam, H. Theuerkauf, J. van Dijk, M. van Opijnen and J. Wardenaar for their help during field work.