Cameroon sunbird
species of bird

The Cameroon sunbird (Cyanomitra oritis) is a species of bird in the family Nectariniidae. It is native to montane forests of Cameroon, Nigeria, and Equatorial Guinea, including the island of Bioko. It inhabits high-altitude forests and feeds primarily on nectar and insects. The species shows marked sexual dimorphism, with males displaying a metallic blue breast and duller females, and is known to make seasonal altitudinal movements. The species is classified as Least Concern by the International Union for Conservation of Nature (IUCN), although its population trend is decreasing due to habitat loss.
Behavior-Call/Vocalization, Breeding, Migration
The vocalization of the Cameroon sunbird consists of a 'sequence of rapid, well spaced whistles described as "tiu tiu tiwu tiwu tiu tiu.'" Breeding has been recorded that eggs are laid from March-April and then from November-December. They build pear-shaped nests that are made from grass, moss, rootlets lined with fibre, silk-cotton, and dry grass. Cameroon sunbirds are considered non-migratory but make altitude movements. On Mount Cameroon, individuals have been observed descending to lower elevations between June and September.
Sexual Dimorphism and Age-Based Differences
Males have an upper breast metallic steel-blue with violet reflections, with their hindneck and the rest of their body being olive-green.
Begin with the source’s own compact description: “Cameroon sunbird” is species of bird. The dossier treats that line as a proposition to test through Cameroon, sunbird and species, not as a finished interpretation.
Why this record matters
The phrase “species of bird” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Mar 16, 2026. The linked authority identifier is Q3729636. None of the 0 selected statements returned an explicit reference.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Cameroon sunbird”, its source revision and the description used here.
- Expand the search: follow Cameroon sunbird primary sources, Cameroon sunbird archive and Cameroon research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Cameroon sunbird”?
- Is the terminology current, historical or disputed?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “Cameroon sunbird” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.