Slaty-bellied Tesia
Slaty-bellied TesiaSlaty-bellied Tesia

Slaty-bellied Tesia

Tesia olivea

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
5–10% · With luck
overall probability at Royal Manas National Park
67 Verified records at Royal Manas National Park
December Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The slaty-bellied tesia (Tesia olivea) is a species of warbler in the family Cettiidae. It is found in Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest. Wikipedia →

5–10% of wildlife watchers report a Slaty-bellied Tesia sighting in Royal Manas National Park, based on 67 days of visitor records from GBIF citizen-science data.

Closest Relatives at Royal Manas National Park

Grey-bellied Tesia
LC

Grey-bellied Tesia

☀️ Diurnal Bird

Tesia cyaniventer

<5% · Rare
Yellow-bellied Warbler
LC

Yellow-bellied Warbler

🌅 Crepuscular Bird

Abroscopus superciliaris

20–30% · Possible
Rufous-faced Warbler
LC

Rufous-faced Warbler

🌅 Crepuscular Bird

Abroscopus albogularis

10–20% · With luck
Black-faced Warbler
LC

Black-faced Warbler

☀️ Diurnal Bird

Abroscopus schisticeps

10–20% · With luck
Chestnut-headed Tesia
LC

Chestnut-headed Tesia

☀️ Diurnal Bird

Cettia castaneocoronata

5–10% · With luck
Brownish-flanked Bush-Warbler
LC Endemic

Brownish-flanked Bush-Warbler

☀️ Diurnal Bird

Horornis fortipes

<5% · Rare
Grey-sided Bush-Warbler
LC

Grey-sided Bush-Warbler

☀️ Diurnal Bird

Cettia brunnifrons

<5% · Rare
Hume's Bush-Warbler
LC

Hume's Bush-Warbler

☀️ Diurnal Bird

Horornis brunnescens

<5% · Rare
Broad-billed Warbler
LC

Broad-billed Warbler

☀️ Diurnal Bird

Tickellia hodgsoni

<5% · Rare
Pale-footed Bush Warbler

Pale-footed Bush Warbler

☀️ Diurnal Bird

Urosphena pallidipes

<5% · Rare
Aberrant Bush-Warbler
LC

Aberrant Bush-Warbler

🌅 Crepuscular Bird

Horornis flavolivaceus

Insufficient data
Chestnut-crowned Bush-Warbler
LC

Chestnut-crowned Bush-Warbler

☀️ Diurnal Bird

Cettia major

Insufficient data

📅 Monthly Probability

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

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙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 Doi Inthanon National Park 🇹🇭 Thailand
40–50%
2 Namdapha National Park 🇮🇳 India
30–40%
3 Khangchendzonga National Park 🇮🇳 India
10–20%
4 Royal Manas National Park 🇧🇹 Bhutan
5–10%
5 Kaziranga National Park 🇮🇳 India
<5%

Quick answers

What are the chances of seeing a Slaty-bellied Tesia in Royal Manas National Park?

About 7% of wildlife watchers report a Slaty-bellied Tesia sighting in Royal Manas National Park, based on 67 days of visitor records from GBIF citizen-science data.

When is the best time to see Slaty-bellied Tesia in Royal Manas National Park?

December has the highest sighting rate for Slaty-bellied Tesia in Royal Manas National Park in our monthly data.

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