Nest-building Behavior of the Endemic Helmet Vanga Euryceros prevostii in Madagascar

Abstract

To determine the mating system of the endemic Helmet Vanga Euryceros prevostii in Madagascar, its nest-building behavior was studied from 27 September to 11 October 2015 on the Masoala Peninsula, Northeastern Madagascar. We found one nest which was open cup-shaped placed on the horizontal branch of a tree. Two birds were individually identified through differences in the spot and shape of the mandible. The two birds (probably male and female) made the nest. This result suggests that the Helmet Vanga is a socially monogamous species.