Japanese Bush Warbler
Japanese Bush WarblerJapanese Bush WarblerJapanese Bush WarblerJapanese Bush Warbler

Japanese Bush Warbler

Horornis diphone

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
60–70% · Likely
overall probability at Nikko National Park
257 Verified records at Nikko National Park
May Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The Japanese bush warbler (Horornis diphone), known in Japanese as uguisu (鶯), is an Asian passerine bird more often heard than seen. Its distinctive breeding song can be heard throughout much of Japan from the start of spring. Wikipedia →

60–70% of wildlife watchers report a Japanese Bush Warbler sighting in Nikko National Park, based on 257 days of visitor records from GBIF citizen-science data.

Closest Relatives at Nikko National Park

Asian Stubtail
LC

Asian Stubtail

🌅 Crepuscular Bird

Urosphena squameiceps

5–10% · With luck
Cinereous Tit

Cinereous Tit

🌅 Crepuscular Bird

Parus cinereus

70–80% · Very likely
Large-billed Crow
LC

Large-billed Crow

🌅 Crepuscular Bird

Corvus macrorhynchos

60–70% · Likely
Coal Tit
LC Endemic

Coal Tit

☀️ Diurnal Bird

Periparus ater

60–70% · Likely
Long-tailed Tit
LC Endemic

Long-tailed Tit

☀️ Diurnal Bird

Aegithalos caudatus

50–60% · Likely
Willow Tit
LC Endemic

Willow Tit

☀️ Diurnal Bird

Poecile montanus

50–60% · Likely
Brown-eared Bulbul
LC

Brown-eared Bulbul

🌅 Crepuscular Bird

Hypsipetes amaurotis

40–50% · Likely
Eurasian Jay
LC Endemic

Eurasian Jay

☀️ Diurnal Bird

Garrulus glandarius

40–50% · Likely
Eurasian Nuthatch
LC

Eurasian Nuthatch

☀️ Diurnal Bird

Sitta europaea

40–50% · Likely
White Wagtail
LC

White Wagtail

☀️ Diurnal Bird

Motacilla alba

40–50% · Likely
Grey Wagtail
LC Endemic

Grey Wagtail

☀️ Diurnal Bird

Motacilla cinerea

40–50% · Likely
Bull-headed Shrike
LC

Bull-headed Shrike

🌅 Crepuscular Bird

Lanius bucephalus

30–40% · Possible

📅 Monthly Probability

30–40
Jan
30–40
Feb
50–60
Mar
80–90
Apr
90–100
May
80–90
Jun
70–80
Jul
70–80
Aug
50–60
Sep
40–50
Oct
20–30
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 Nikko National Park 🇯🇵 Japan
60–70%
2 Taroko National Park 🇹🇼 Taiwan
<5%

Quick answers

What are the chances of seeing a Japanese Bush Warbler in Nikko National Park?

About 65% of wildlife watchers report a Japanese Bush Warbler sighting in Nikko National Park, based on 257 days of visitor records from GBIF citizen-science data.

When is the best time to see Japanese Bush Warbler in Nikko National Park?

May has the highest sighting rate for Japanese Bush Warbler in Nikko National Park in our monthly data.

← Back to Nikko National Park