Pycnonotus cafer
In 3 days >90%
The red-vented bulbul (Pycnonotus cafer) is a member of the bulbul family of passerines. It is a resident breeder across South Asia extending east to Burma. It has been introduced in many other parts of the world and has established itself in Argentina, Tonga and Fiji, as well as parts of Samoa, USA and Cook Islands. It is included in the list of the world's 100 worst invasive alien species. In New Zealand they were the target of a successful extermination campaign in 1955, however they are still sporadically reported.
In 1760 the French zoologist Mathurin Jacques Brisson included a description of the red-vented bulbul in his Ornithologie based on a specimen that he mistakenly believed had been collected from the Cape of Good Hope in South Africa. He used the French name Le merle hupé du Cap de Bonne Espérance and the Latin Merula Cristata Capitis Bonae Spei. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been...
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Udawalawe National Park | 🇱🇰 Sri Lanka | |
| 2 | Ranthambore National Park | 🇮🇳 India | |
| 3 | Yala National Park | 🇱🇰 Sri Lanka | |
| 4 | Mudumalai National Park | 🇮🇳 India | |
| 5 | Gir National Park | 🇮🇳 India | |
| 6 | Keoladeo National Park | 🇮🇳 India | |
| 7 | Bandhavgarh National Park | 🇮🇳 India | |
| 8 | Jim Corbett National Park | 🇮🇳 India | |
| 9 | Kanha National Park | 🇮🇳 India | |
| 10 | Chitwan National Park | 🇳🇵 Nepal | |
| 11 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 12 | Wilpattu National Park | 🇱🇰 Sri Lanka | |
| 13 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 14 | Minneriya National Park | 🇱🇰 Sri Lanka | |
| 15 | Manas National Park | 🇮🇳 India | |
| 16 | Satpura National Park | 🇮🇳 India | |
| 17 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 18 | Kaziranga National Park | 🇮🇳 India | |
| 19 | Bandipur National Park | 🇮🇳 India | |
| 20 | Sundarbans National Park | 🇮🇳 India | |
| 21 | Nagarhole National Park | 🇮🇳 India | |
| 22 | Horton Plains National Park | 🇱🇰 Sri Lanka | |
| 23 | Namdapha National Park | 🇮🇳 India | |
| 24 | Periyar National Park | 🇮🇳 India | |
| 25 | Eravikulam National Park | 🇮🇳 India | |
| 26 | Langtang National Park | 🇳🇵 Nepal |
Very likely
About 70% of wildlife watchers report a Red-vented Bulbul sighting in Royal Bardia National Park on a given day, based on 282 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 237 birds we can rate there. Over three days the chance rises to over 90%, if each day is a fresh chance.
December
In that month about 90% of wildlife watchers report a Red-vented Bulbul in Royal Bardia National Park on a given day, against about 60% in February–April, June–July and September, the lowest months. That is one of Royal Bardia National Park's driest months, with about 10 mm of rain against 590 mm in July. August has too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Red-vented 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.
17th of 26
Of the 26 parks where we can rate Red-vented Bulbul sightings, Royal Bardia National Park ranks 17th at about 70%. The best odds are in Udawalawe National Park (Sri Lanka, about 80%), Ranthambore National Park (India, about 80%) and Yala National Park (Sri Lanka, about 80%). All parks ranked.
Same genus: Pycnonotus
The closest relatives of the Red-vented Bulbul that you can see in Royal Bardia National Park (genus Pycnonotus, Typical Bulbuls) are Red-whiskered Bulbul (about 60%) and Black-crested Bulbul (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-vented Bulbul is recorded against all the birds logged in Royal Bardia National Park (282 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.
