Pachycephala cinerea
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The mangrove whistler (Pachycephala cinerea) is a species of bird in the family Pachycephalidae found in South-east Asia. Alternate names for the mangrove whistler include the grey thickhead and white-bellied whistler. The latter name should not be confused with the species of the same name, Pachycephala leucogastra. Formerly, both the green-backed and white-vented whistlers were considered to be subspecies of the mangrove whistler.
Found in Palawan (Philippines) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sundarbans National Park | 🇮🇳 India | |
| 2 | Bali Barat National Park | 🇮🇩 Indonesia | |
| 3 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 4 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Possible
About 20% of wildlife watchers report a Mangrove Whistler sighting in Sundarbans National Park on a given day, based on 446 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 56th most-seen of the 177 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July
In that month about 60% of wildlife watchers report a Mangrove Whistler in Sundarbans National Park on a given day, against under 5% in November to January, the lowest months. That is one of Sundarbans National Park's wettest months, with about 480 mm of rain against 15 mm in January. May and June have too few records to rate.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Mangrove Whistler sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 4 parks where we can rate Mangrove Whistler sightings, Sundarbans National Park has the highest daily chance: about 20%. Next come Bali Barat National Park (Indonesia, about 10%) and Way Kambas National Park (Indonesia, under 5%).
Same order: Passeriformes
The closest relatives of the Mangrove Whistler that you can see in Sundarbans National Park (order Passeriformes, Perching Birds) are Large-billed Crow (about 60%), Oriental Magpie-Robin (about 50%) and Bronzed Drongo (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mangrove Whistler is recorded against all the birds logged in Sundarbans National Park (446 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
