| Black-naped monarch | |
|---|---|
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| A male (H. a. montana) from Kaeng Krachan in Thailand | |
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| H. a. montana female | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Monarchidae |
| Genus: | Hypothymis |
| Species: | H. azurea
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| Binomial name | |
| Hypothymis azurea (Boddaert, 1783)
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| Subspecies | |
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See text | |
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| approximate distribution | |
| Synonyms | |
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The black-naped monarch or black-naped blue flycatcher (Hypothymis azurea) is a slim and agile passerine bird belonging to the family of monarch flycatchers found in southern and south-eastern Asia. They are sexually dimorphic, with the male having a distinctive black patch on the back of the head and a narrow black half collar ("necklace"), while the female is duller with olive brown wings and lacking the black markings on the head. They have a call that is similar to that of the Asian paradise flycatcher, and in tropical forest habitats, pairs may join mixed-species foraging flocks. Populations differ slightly in plumage colour and sizes.
- ^ BirdLife International (2016). "Hypothymis azurea". IUCN Red List of Threatened Species. 2016: e.T103715755A94105987. doi:10.2305/IUCN.UK.2016-3.RLTS.T103715755A94105987.en.