Green-billed Coucal
Green-billed CoucalGreen-billed Coucal

Green-billed Coucal

Centropus chlororhynchos

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
30–40% · Possible
overall probability at Sinharaja Forest Reserve
525 Verified records at Sinharaja Forest Reserve
May Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The green-billed coucal (Centropus chlororhynchos) is a member of the cuckoos. It is endemic to Sri Lanka's wet zone and listed as Vulnerable on the IUCN Red List, as the small population declined due to forest destruction and fragmentation. It inhabits the tall rainforests of southwest Sri Lanka and nests in bushes. Its typical clutch is 2–3 eggs. Wikipedia →

30–40% of wildlife watchers report a Green-billed Coucal sighting in Sinharaja Forest Reserve, based on 525 days of visitor records from GBIF citizen-science data.

Closest Relatives at Sinharaja Forest Reserve

Greater Coucal
LC

Greater Coucal

🌅 Crepuscular Bird

Centropus sinensis

20–30% · Possible
Red-faced Malkoha
VU

Red-faced Malkoha

🌅 Crepuscular Bird

Phaenicophaeus pyrrhocephalus

30–40% · Possible
Banded Bay Cuckoo
LC

Banded Bay Cuckoo

🌅 Crepuscular Bird

Cacomantis sonneratii

5–10% · With luck
Asian Koel
LC

Asian Koel

☀️ Diurnal Bird

Eudynamys scolopaceus

<5% · Rare
Common Hawk-Cuckoo

Common Hawk-Cuckoo

🌅 Crepuscular Bird

Cuculus varius

<5% · Rare
Asian Drongo-Cuckoo
LC

Asian Drongo-Cuckoo

🌅 Crepuscular Bird

Surniculus lugubris

<5% · Rare
Indian Cuckoo
LC

Indian Cuckoo

🌅 Crepuscular Bird

Cuculus micropterus

<5% · Rare
Lesser Cuckoo
LC

Lesser Cuckoo

☀️ Diurnal Bird

Cuculus poliocephalus

Insufficient data
Grey-bellied Cuckoo
LC

Grey-bellied Cuckoo

🌅 Crepuscular Bird

Cacomantis passerinus

Insufficient data
Chestnut-winged Cuckoo
LC

Chestnut-winged Cuckoo

☀️ Diurnal Bird

Clamator coromandus

Insufficient data

📅 Monthly Probability

30–40
Jan
40–50
Feb
30–40
Mar
20–30
Apr
50–60
May
30–40
Jun
20–30
Jul
20–30
Aug
30–40
Sep
40–50
Oct
30–40
Nov
40–50
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 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
30–40%
2 Horton Plains National Park 🇱🇰 Sri Lanka
Insufficient data

Quick answers

What are the chances of seeing a Green-billed Coucal in Sinharaja Forest Reserve?

About 36% of wildlife watchers report a Green-billed Coucal sighting in Sinharaja Forest Reserve, based on 525 days of visitor records from GBIF citizen-science data.

When is the best time to see Green-billed Coucal in Sinharaja Forest Reserve?

May has the highest sighting rate for Green-billed Coucal in Sinharaja Forest Reserve in our monthly data.

← Back to Sinharaja Forest Reserve