Limestone Leaf-Warbler

Limestone Leaf-Warbler

Phylloscopus calciatilis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Cuc Phuong National Park
60 Verified records at Cuc Phuong National Park
February Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The limestone leaf warbler (Phylloscopus calciatilis) is a species of warbler in the family Phylloscopidae. When this species was first seen, beginning in 1994, it was mistaken for the similar sulphur-breasted warbler. It is smaller than the sulphur-breasted warbler, and has more rounded wings. The plumage is almost identical, with comparisons showing only a slightly colder yellow below and a greyer tinge above. Although smaller, the bill is proportionally larger than that of the sulphur-breasted warbler. Accurate measurements are not available; the holotype has a wing length of 5.2 cm (2.0 in); the paratype a tail length of 3.7 cm (1.5 in) and a bill length of 1.39 cm (0.55 in). Wikipedia →

20–30% of wildlife watchers report a Limestone Leaf-Warbler sighting in Cuc Phuong National Park, based on 60 days of visitor records from GBIF citizen-science data.

Closest Relatives at Cuc Phuong National Park

Yellow-browed Warbler
LC

Yellow-browed Warbler

🌅 Crepuscular Bird

Phylloscopus inornatus

40–50% · Likely
Dusky Warbler
LC

Dusky Warbler

☀️ Diurnal Bird

Phylloscopus fuscatus

<5% · Rare
Claudia's Leaf-Warbler
LC

Claudia's Leaf-Warbler

🌅 Crepuscular Bird

Phylloscopus claudiae

<5% · Rare
Arctic Warbler
LC

Arctic Warbler

☀️ Diurnal Bird

Phylloscopus borealis

<5% · Rare
Sulphur-breasted Warbler
LC

Sulphur-breasted Warbler

🌅 Crepuscular Bird

Phylloscopus ricketti

<5% · Rare
Eastern Crowned-Warbler
LC

Eastern Crowned-Warbler

🌅 Crepuscular Bird

Phylloscopus coronatus

<5% · Rare
Pale-legged Leaf-Warbler
LC

Pale-legged Leaf-Warbler

Bird

Phylloscopus tenellipes

<5% · Rare
Radde's Warbler
LC

Radde's Warbler

🌅 Crepuscular Bird

Phylloscopus schwarzi

Insufficient data
Davison's Leaf-Warbler
LC

Davison's Leaf-Warbler

🌅 Crepuscular Bird

Phylloscopus intensior

Insufficient data
Greenish Warbler
LC

Greenish Warbler

☀️ Diurnal Bird

Phylloscopus trochiloides

Insufficient data
Bianchi's Warbler

Bianchi's Warbler

🌅 Crepuscular Bird

Seicercus valentini

10–20% · With luck
Gray-crowned Warbler

Gray-crowned Warbler

☀️ Diurnal Bird

Seicercus tephrocephalus

5–10% · Rare

📅 Monthly Probability

30–40
Jan
30–40
Feb
10–20
Mar
5–10
Apr
10–20
May
20–30
Jun
10–20
Jul
10–20
Aug
10–20
Sep
5–10
Oct
20–30
Nov
30–40
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 Cuc Phuong National Park 🇻🇳 Vietnam
20–30%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Limestone Leaf-Warbler in Cuc Phuong National Park?

About 21% of wildlife watchers report a Limestone Leaf-Warbler sighting in Cuc Phuong National Park, based on 60 days of visitor records from GBIF citizen-science data.

When is the best time to see Limestone Leaf-Warbler in Cuc Phuong National Park?

February has the highest sighting rate for Limestone Leaf-Warbler in Cuc Phuong National Park in our monthly data.

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