Slaty-bellied Tesia
Slaty-bellied TesiaSlaty-bellied Tesia

Slaty-bellied Tesia

Tesia olivea

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
30–40% · Possible
overall probability at Namdapha National Park
344 Verified records at Namdapha National Park
January 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 →

30–40% of wildlife watchers report a Slaty-bellied Tesia sighting in Namdapha National Park, based on 344 days of visitor records from GBIF citizen-science data.

Closest Relatives at Namdapha National Park

Grey-bellied Tesia
LC

Grey-bellied Tesia

☀️ Diurnal Bird

Tesia cyaniventer

5–10% · With luck
Yellow-bellied Warbler
LC

Yellow-bellied Warbler

🌅 Crepuscular Bird

Abroscopus superciliaris

30–40% · Possible
Rufous-faced Warbler
LC

Rufous-faced Warbler

🌅 Crepuscular Bird

Abroscopus albogularis

20–30% · Possible
Chestnut-headed Tesia
LC

Chestnut-headed Tesia

☀️ Diurnal Bird

Cettia castaneocoronata

5–10% · With luck
Grey-sided Bush-Warbler
LC

Grey-sided Bush-Warbler

☀️ Diurnal Bird

Cettia brunnifrons

<5% · Rare
Brownish-flanked Bush-Warbler
LC Endemic

Brownish-flanked Bush-Warbler

☀️ Diurnal Bird

Horornis fortipes

Insufficient data
Black-faced Warbler
LC

Black-faced Warbler

☀️ Diurnal Bird

Abroscopus schisticeps

Insufficient data
Ashy-fronted Bearded Bulbul
LC

Ashy-fronted Bearded Bulbul

🌅 Crepuscular Bird

Alophoixus flaveolus

60–70% · Likely
Streaked Spiderhunter
LC

Streaked Spiderhunter

🌅 Crepuscular Bird

Arachnothera magna

60–70% · Likely
Bronzed Drongo
LC Endemic

Bronzed Drongo

🌅 Crepuscular Bird

Dicrurus aeneus

50–60% · Likely
Slaty-backed Forktail
LC

Slaty-backed Forktail

🌅 Crepuscular Bird

Enicurus schistaceus

50–60% · Likely
Yellow-bellied Fairy-Fantail

Yellow-bellied Fairy-Fantail

🌅 Crepuscular Bird

Chelidorhynx hypoxantha

50–60% · Likely

📅 Monthly Probability

50–60
Jan
20–30
Feb
30–40
Mar
5–10
Apr
10–20
May
20–30
Jun
30–40
Jul
20–30
Aug
20–30
Sep
5–10
Oct
30–40
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 Namdapha National Park?

About 31% of wildlife watchers report a Slaty-bellied Tesia sighting in Namdapha National Park, based on 344 days of visitor records from GBIF citizen-science data.

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

January has the highest sighting rate for Slaty-bellied Tesia in Namdapha National Park in our monthly data.

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