Dicrurus caerulescens
Silhouette: Ferran Sayol · PhyloPic
In 3 days <5% in a week ~10%
The white-bellied drongo (Dicrurus caerulescens) is a species of drongo found across the Indian Subcontinent. Like other members of the family Dicruridae, they are insectivorous and mainly black in colour, but with a white belly and vent. Young birds are, however, all black and may be confused with the black drongo, which is smaller and more compact in appearance. The subspecies found in Sri Lanka has white restricted to the vent.
In 1747 the English naturalist George Edwards included an illustration and a description of the white-bellied drongo in the second volume of his A Natural History of Uncommon Birds. He used the English name "The Fork- tail'd Indian Butcher-Bird". Edwards based his hand-coloured etching on a specimen that had been sent from Bengal to the silk-pattern designer Joseph Dandridge in London. When in 1758 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the tenth edition, he placed the white-bellied drongo with the shrikes in the genus Lanius. Linnaeus included a brief description, coined the binomial name Lanius caerulescens and cited Edwards' work. The specific epithet caerulescens is Latin meaning "bluish". The white-bellied... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 2 | Ranthambore National Park | 🇮🇳 India | |
| 3 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 4 | Satpura National Park | 🇮🇳 India | |
| 5 | Bandhavgarh National Park | 🇮🇳 India | |
| 6 | Kanha National Park | 🇮🇳 India | |
| 7 | Mudumalai National Park | 🇮🇳 India | |
| 8 | Bandipur National Park | 🇮🇳 India | |
| 9 | Wilpattu National Park | 🇱🇰 Sri Lanka | |
| 10 | Nagarhole National Park | 🇮🇳 India | |
| 11 | Chitwan National Park | 🇳🇵 Nepal | |
| 12 | Minneriya National Park | 🇱🇰 Sri Lanka | |
| 13 | Udawalawe National Park | 🇱🇰 Sri Lanka | |
| 14 | Jim Corbett National Park | 🇮🇳 India | |
| 15 | Yala National Park | 🇱🇰 Sri Lanka | |
| 16 | Eravikulam National Park | 🇮🇳 India | |
| 17 | Horton Plains National Park | 🇱🇰 Sri Lanka | |
| 18 | Keoladeo National Park | 🇮🇳 India |
Rare
Under 5% of wildlife watchers report a White-bellied Drongo sighting in Prayagraj on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 139 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
January and March
In those months about 10% of wildlife watchers report a White-bellied Drongo in Prayagraj on a given day, against under 5% in February and April–December, the lowest months. Those are among Prayagraj's driest months, with about 15 mm of rain a month against 260 mm in July.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most White-bellied Drongo sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
7th of 17
Of the 17 cities where we can rate White-bellied Drongo sightings, Prayagraj ranks 7th at under 5%. The best odds are in Colombo [Sri Jayawardenepura Kotte] (Sri Lanka, about 50%), Jaipur (India, about 20%) and Lucknow (India, about 10%).
GBIF citizen-science records
It is estimated from how often the White-bellied Drongo is recorded against all the birds logged in Prayagraj (9 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.
