(Euryceros prevostii)
The helmet vanga (Euryceros prevostii) is a distinctive-looking bird of the vanga family,Vangidae,and is classified in its own genus,Euryceros.It is mainly blue-black,with rufous wings and a huge arched blue bill.It is restricted to lowland and lower montane rainforests of northeastern Madagascar.Its diet is composed of invertebrates,predominantly insects.The species is threatened by habitat loss.