What is "heterophasia"

Heterophasia, the sibias, is a bird genus in the family Leiothrichidae. By some, the genus is considered monotypic, including only H. picaoides.

It contains the following species:

• Rufous-backed sibia, Heterophasia annectens – sometimes in Leioptila
• White-eared sibia, Heterophasia auricularis – sometimes in Malacias
• Rufous sibia, Heterophasia capistrata – sometimes in Malacias
• Grey sibia, Heterophasia gracilis – sometimes in Malacias
• Dark-backed sibia, Heterophasia melanoleuca – sometimes in Malacias
• Black-headed sibia or Desgodin's sibia, Heterophasia desgodinsi – sometimes in Malacias, formerly included in H. melanoleuca
• Long-tailed sibia, Heterophasia picaoides
• Beautiful sibia, Heterophasia pulchella – sometimes in Malacias