Ploceus pelzelni
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The slender-billed weaver (Ploceus pelzelni) is a species of bird in the weaver family, Ploceidae. It is sparsely distributed across equatorial Africa, namely along the shoreline of the Gulf of Guinea and Congo River and the Lake Victoria region.
Slender-billed Weaver (Ploceus pelzelni) videos at the Internet Bird Collection Slender-billed weaver - Species text in Weaver Watch. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Queen Elizabeth National Park | 🇺🇬 Uganda | |
| 2 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 3 | Murchison Falls National Park | 🇺🇬 Uganda | |
| 4 | Akagera National Park | 🇷🇼 Rwanda | |
| 5 | Lake Mburo National Park | 🇺🇬 Uganda | |
| 6 | Kibale National Park | 🇺🇬 Uganda | |
| 7 | Volcanoes National Park | 🇷🇼 Rwanda | |
| 8 | Nyungwe National Park | 🇷🇼 Rwanda | |
| 9 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 10 | Serengeti National Park | 🇹🇿 Tanzania |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brazzaville | 🇨🇬 Republic of the Congo | |
| 2 | Kigali | 🇷🇼 Rwanda | |
| 3 | Kampala | 🇺🇬 Uganda | |
| 4 | Accra | 🇬🇭 Ghana |
Rare
Under 5% of wildlife watchers report a Slender-billed Weaver sighting in Volcanoes National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 140th most-seen of the 156 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
April and November
In those months about 10% of wildlife watchers report a Slender-billed Weaver in Volcanoes National Park on a given day, against under 5% in May–October and December–March, the lowest months. Those are among Volcanoes National Park's wettest months, with about 240 mm of rain a month against 20 mm in July.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Slender-billed 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.
7th of 10
Of the 10 parks where we can rate Slender-billed Weaver sightings, Volcanoes National Park ranks 7th at under 5%. The best odds are in Queen Elizabeth National Park (Uganda, about 30%), Virunga National Park (Democratic Republic of the Congo, about 10%) and Murchison Falls National Park (Uganda, about 10%).
Same genus: Ploceus
The closest relatives of the Slender-billed Weaver that you can see in Volcanoes National Park (genus Ploceus, Typical Weavers) are Baglafecht Weaver (about 60%), Strange Weaver (about 10%) and Black-headed Weaver (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slender-billed Weaver is recorded against all the birds logged in Volcanoes National Park (6 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.
