Alternative name: Olive Weaver-finch
- Nesocharis ansorgei
Identification
10cm.
Male
- Black head and throat
- Grey nape
- Olive upperparts, blackish-brown upperwing
- Blackish tail
- White collar between breast and throat
- Olive breast, more yellowish in centre
- Grey rest of underparts
Female
- Reduced or lacking white collar
- All grey underparts
Juveniles are undescribed.
Distribution
Found in the Albertine Rift region of Uganda, Rwanda, eastern DR Congo and extreme northwest Tanzania.
Uncommon to scarce but probably overlooked.
Taxonomy
This is a monotypic species.
May form a superspecies with Shelley's Oliveback and is even sometimes considered conspecific.
Habitat
Found in papyrus swamps, lakeshore thickets, in bushes and trees bordering streams and in marshy forest edges.
Occurs from 1000 to 1900m.
Behaviour
Diet
Feeds on small seeds. Forages actively at all levels, in pairs or in small groups. Gleans at branches and leaves, often hangs upside-down.
Breeding
Breeds in wet season. Uses old nests of other species for breeding, particularly nests of Strange Weaver and Spectacled Weaver. Lays 2 to 3 eggs.
Movements
A resident species.
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2012. The eBird/Clements Checklist of Birds of the World. 6th ed., with updates to October 2012. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
- Del Hoyo, J, A Elliott, and D Christie, eds. 2010. Handbook of the Birds of the World. Volume 15: Weavers to New World Warblers. Barcelona: Lynx Edicions. ISBN 978-8496553682
Recommended Citation
- BirdForum Opus contributors. (2025) White-collared Oliveback. In: BirdForum, the forum for wild birds and birding. Retrieved 11 May 2025 from https://www.birdforum.net/opus/White-collared_Oliveback
