- Ptyonoprogne concolor
13cm (5 in).
- Dark sooty brown overall plumage
- Paler underparts
- Square tail
Previously included in genus Hirundo.
There are 2 subspecies:
- P. c. concolor :
- P. c. sintaungensis:
Gorges, cliffs, thorn forests.
There is no information about dietary items. They sometimes feed in groups, but more often alone or in pairs. They often associate with other hirundine species.
It builds a half saucer shaped nest from mud, attached to walls of buildings.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Nagpur Birds
- Handbook of the Birds of the World Alive (retrieved April 2017)
- BirdForum Opus contributors. (2021) Dusky Crag Martin. In: BirdForum, the forum for wild birds and birding. Retrieved 21 January 2021 from https://www.birdforum.net/wiki/Dusky_Crag_Martin