North-eastern Madagascar (from Marojejy region south to Tsaratanana and Mantadia).
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 10,000 - 19,999 (2010) and decreasing.
Status EN
Habitat destruction and degradation through clearance for shifting agriculture and commercial exploitation of timber, is the main threat.
For more information see BirdLife International Species Factsheet.
Helmet Vanga (Euryceros prevostii) [XC536976]
by Dries Van de Loock from Iaroka Forest, Moramanga District, Toamasina Province, Madagascar (call, contact call)
Helmet Vanga (Euryceros prevostii) [XC536977]
by id from Iaroka Forest, Moramanga District, Toamasina Province, Madagascar (call)
Subspecies
No subspecies.
Has in the past sometimes been placed in a separate, monotypic family, Eurycerotidae. Recent molecular-genetic analysis indicates that genus may be closest to Calicalicus, Vanga, Cyanolanius and Schetba.