Cyornis

Cyornis is a genus of birds in the Old World flycatcher family, Muscicapidae. These birds are typically small and insectivorous, with a preference for foraging in dense undergrowth or along forest edges. The genus is characterized by its often vibrant blue plumage, particularly in the males, though coloration can vary significantly among species. Females are generally more subdued in color, often exhibiting shades of brown or olive.

The distribution of Cyornis species is primarily concentrated in Southeast Asia, with some extending into the Indian subcontinent and parts of Oceania. Many species inhabit tropical and subtropical forests, while others are found in montane regions. Their breeding habits are typical of flycatchers, with nests often built in tree cavities or dense vegetation. The diet consists mainly of insects, which they catch by sallying from a perch.

Several species within the Cyornis genus are well-known, such as the Blue-and-white Flycatcher (Cyornis whitesidei) and the Indochinese Blue Flycatcher (Cyornis poliogenys). Conservation statuses vary among species, with some being common and widespread, while others face threats from habitat loss and fragmentation, leading to concerns about their long-term survival. Research into their vocalizations, breeding biology, and genetic relationships continues to refine our understanding of this diverse group of birds.