Ploceus brachypterus
Silhouette: PhyloPic
In 3 days ~20% in a week ~30%
The olive-naped weaver (Ploceus brachypterus) is a bird species in the family Ploceidae. It is found in West Africa from Senegal and Gambia to Cameroon. The olive-naped weaver was formally described and illustrated in 1837 by the English naturalist William Swainson. He did not specify the origin of his specimens but they probably came from Senegal. He placed the species in the genus Ploceus and coined the binomial name Ploceus brachypterus. The specific epithet is from Ancient Greek brakhupteros meaning "short-winged".
The olive-naped weaver was formerly considered to be a subspecies of the black-necked weaver (Ploceus nigricollis). The two species differ in plumage and in the colour of the iris, but a molecular study published in 2019 found that they are genetically very similar. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Niokolo-Koba National Park | 🇸🇳 Senegal |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Olive-naped Weaver sighting in Niokolo-Koba National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 160th most-seen of the 215 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report an Olive-naped Weaver in Niokolo-Koba National Park on a given day, against under 5% in January–February, August–September and November, the lowest months. That is one of Niokolo-Koba National Park's driest months, with almost no rain against 300 mm in August. May–July and October have too few records to rate.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Olive-naped Weaver sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Niokolo-Koba National Park, in our data
Niokolo-Koba National Park is the only park on Wallace's Line with enough records to rate Olive-naped Weaver sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Ploceus
The closest relatives of the Olive-naped Weaver that you can see in Niokolo-Koba National Park (genus Ploceus, Typical Weavers) are Black-headed Weaver (about 20%), Village Weaver (about 10%) and Little Weaver (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Olive-naped Weaver is recorded against all the birds logged in Niokolo-Koba National Park (19 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
