Slender-billed Greenbul
Slender-billed GreenbulSlender-billed GreenbulSlender-billed Greenbul

Slender-billed Greenbul

Stelgidillas gracilirostris

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
10–20% · With luck
overall probability at Nyungwe National Park
142 Verified records at Nyungwe National Park
October Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The slender-billed greenbul (Stelgidillas gracilirostris) is a species in the monotypic genus Stelgidillas of the bulbul family of passerine birds. It is found in western and central Africa. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, and subtropical or tropical moist montane forest. Wikipedia →

10–20% of wildlife watchers report a Slender-billed Greenbul sighting in Nyungwe National Park, based on 142 days of visitor records from GBIF citizen-science data.

Closest Relatives at Nyungwe National Park

Common Bulbul
LC

Common Bulbul

☀️ Diurnal Bird

Pycnonotus barbatus

60–70% · Likely
Yellow-whiskered Greenbul
LC

Yellow-whiskered Greenbul

☀️ Diurnal Bird

Eurillas latirostris

40–50% · Likely
Yellow-streaked Bulbul
LC

Yellow-streaked Bulbul

☀️ Diurnal Bird

Phyllastrephus flavostriatus

20–30% · Possible
Cabanis's Greenbul
LC

Cabanis's Greenbul

☀️ Diurnal Bird

Phyllastrephus cabanisi

5–10% · Rare
Shelley's Greenbul
LC

Shelley's Greenbul

☀️ Diurnal Bird

Arizelocichla masukuensis

<5% · Rare
Yellow-gorgeted Greenbul
LC

Yellow-gorgeted Greenbul

☀️ Diurnal Bird

Atimastillas flavicollis

<5% · Rare
Plain Greenbul
LC

Plain Greenbul

☀️ Diurnal Bird

Eurillas curvirostris

<5% · Rare
Chubb's Cisticola
LC

Chubb's Cisticola

☀️ Diurnal Bird

Cisticola chubbi

70–80% · Likely
Green White-eye

Green White-eye

☀️ Diurnal Bird

Zosterops stuhlmanni

60–70% · Likely
Black Sawwing
LC

Black Sawwing

☀️ Diurnal Bird

Psalidoprocne pristoptera

60–70% · Likely
Regal Sunbird
LC

Regal Sunbird

☀️ Diurnal Bird

Cinnyris regius

50–60% · Likely
African Dusky Flycatcher
LC

African Dusky Flycatcher

☀️ Diurnal Bird

Muscicapa adusta

50–60% · Likely

📅 Monthly Probability

10–20
Jan
10–20
Feb
5–10
Mar
5–10
Apr
5–10
May
5–10
Jun
10–20
Jul
10–20
Aug
10–20
Sep
20–30
Oct
5–10
Nov
10–20
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Bwindi Impenetrable National Park 🇺🇬 Uganda
30–40%
2 Kibale National Park 🇺🇬 Uganda
30–40%
3 Semuliki National Park 🇺🇬 Uganda
10–20%
4 Virunga National Park 🇨🇩 Democratic Republic of the Congo
10–20%
5 Taï National Park 🇨🇮 Ivory Coast
10–20%
6 Nyungwe National Park 🇷🇼 Rwanda
10–20%
7 Aberdare National Park 🇰🇪 Kenya
<5%
8 Queen Elizabeth National Park 🇺🇬 Uganda
<5%
9 Masai Mara National Reserve 🇰🇪 Kenya
<5%
10 Lake Mburo National Park 🇺🇬 Uganda
Insufficient data
11 Volcanoes National Park 🇷🇼 Rwanda
Insufficient data

Quick answers

What are the chances of seeing a Slender-billed Greenbul in Nyungwe National Park?

About 11% of wildlife watchers report a Slender-billed Greenbul sighting in Nyungwe National Park, based on 142 days of visitor records from GBIF citizen-science data.

When is the best time to see Slender-billed Greenbul in Nyungwe National Park?

October has the highest sighting rate for Slender-billed Greenbul in Nyungwe National Park in our monthly data.

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