What is "henicopernis"

Henicopernis is a genus of bird of prey in the Accipitridae family. It contains the following species:

• Black honey buzzard (Henicopernis infuscatus)
• Long-tailed honey buzzard (Henicopernis longicauda)

Both species are endemic to New Guinea. Genetic research has found that they are closely related to the Australian endemic square-tailed kite (Lophoictinia isura) and black-breasted buzzard (Hamirostra melanosternon), all sharing a 3-base-pair deletion in the RAG-1 gene. The four species form a monophyletic clade sister to Aviceda within the subfamily Perninae. It has been proposed that they could be united into a single genus, Hamirostra having precedence.