Barboza du Bocage, 1868
They measure 15 cm and weigh 16 to 19 g. The plumage of the forehead, throat and upper breast is coloured deep rufous-chestnut. The crown and upperparts are a shiny steel-blue. Flight and tail feathers are black, the latter with large white windows.
They frequent a variety of open habitats up to the fringes of forest, whether altered by man or natural. Their diet consists of a variety of flying insects. They may forage alone or in flocks, and emit a weak twittering. Their breeding season and abundance depends much on their region of residence, and a few undertake migrations.
It has been considered conspecific with the Red-chested swallow, but is generally taken as a full species in a species complex that includes Barn, Red-chested, Pacific, Welcome, White-throated and Ethiopian swallows.
There are two subspecies, but intermediate forms occur:
- BirdLife International (2012). "Hirundo angolensis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Turner, A. "Angolan Swallow (Hirundo angolensis)". Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Retrieved 9 April 2016.
- "Angolan Swallow (Hirundo angolensis) - HBW 9, p. 666". The Internet Bird Collection (IBC). Retrieved 9 April 2016.
- "Angola Swallow (arcticincta)". avibase. Retrieved 9 April 2016.
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