Pycnonotus flaviventris
In 3 days ~10% in a week ~20%
The black-crested bulbul (Rubigula flaviventris) is a member of the bulbul family of passerine birds. It is found from the Indian subcontinent to southeast Asia. The black-crested bulbul was originally described in the genus Vanga and later moved to the genus Pycnonotus. Pycnonotus was found to be polyphyletic in recent molecular phylogenetic studies and five bulbuls, including the black-crested bulbul, were moved to Rubigula.
Until 2008, the black-crested bulbul was considered as conspecific with the black-capped, ruby-throated, flame-throated and Bornean bulbuls, but these are all now treated as distinct. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Khao Sok National Park | 🇹🇭 Thailand | |
| 4 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 5 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 6 | Khao Luang National Park | 🇹🇭 Thailand | |
| 7 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 8 | Manas National Park | 🇮🇳 India | |
| 9 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 10 | Jim Corbett National Park | 🇮🇳 India | |
| 11 | Namdapha National Park | 🇮🇳 India | |
| 12 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 13 | Chitwan National Park | 🇳🇵 Nepal | |
| 14 | Kaziranga National Park | 🇮🇳 India | |
| 15 | Satpura National Park | 🇮🇳 India | |
| 16 | Taman Negara National Park | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dehradun | 🇮🇳 India | |
| 2 | Guwahati | 🇮🇳 India | |
| 3 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 4 | Bangkok | 🇹🇭 Thailand | |
| 5 | Singapore | 🇸🇬 Singapore |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Kuala Lumpur Bird Park | 🇲🇾 Malaysia | |
| 2 | Hong Kong Zoological and Botanical Gardens | 🇨🇳 China | |
| 3 | Penang Bird Park | 🇲🇾 Malaysia | |
| 4 | Edward Youde Aviary | 🇭🇰 Hong Kong SAR China |
Rare
Under 5% of wildlife watchers report a Black-crested Bulbul sighting in Dehradun on a given day, based on 199 verified sightings from GBIF citizen-science data. It is the 119th most-seen of the 280 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
December to February
In those months about 10% of wildlife watchers report a Black-crested Bulbul in Dehradun on a given day, against under 5% in March to November, the lowest months. Those are among Dehradun's driest months, with about 30 mm of rain a month against 370 mm in July.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Black-crested Bulbul sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 cities where we can rate Black-crested Bulbul sightings, Dehradun has the highest daily chance: under 5%. Next come Guwahati (India, under 5%) and Kuala Lumpur (Malaysia, under 5%).
Same genus: Pycnonotus
The closest relatives of the Black-crested Bulbul that you can see in Dehradun (genus Pycnonotus, Typical Bulbuls) are White-cheeked Bulbul (about 70%) and Red-whiskered Bulbul (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-crested Bulbul is recorded against all the birds logged in Dehradun (199 verified sightings), 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.
