Dicrurus annectens
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~10% in a week ~20%
The crow-billed drongo (Dicrurus annectens) is a species of bird in the family Dicruridae. It is native to moist tropical forests of southeastern Asia where its range extends from India to the Philippines and Indonesia. It is a completely black bird with a shallowly forked tail and is similar in appearance to the black drongo. It breeds between April and June, the cup-shaped nest being built in the fork of a branch by both birds, the female afterwards incubating the eggs. It is a common bird and the IUCN has listed it as "least concern".
The crow-billed drongo was originally described by the English naturalist Brian Houghton Hodgson in 1836 and given the binomial name Bhuchanga annectans. The specific epithet is a misspelling of the Latin word annectens meaning "connecting". This error has been corrected following the rules of the International Commission on Zoological Nomenclature to give the current scientific name Dicrurus annectens. The present genus Dicrurus had been introduced by the French ornithologist Louis Pierre Vieillot in 1816.
This bird, which is similar to the black drongo, is jet-black in color and has a stout bill. It has a forked tail... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Sok National Park | 🇹🇭 Thailand | |
| 2 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 6 | Chitwan National Park | 🇳🇵 Nepal | |
| 7 | Khao Luang National Park | 🇹🇭 Thailand | |
| 8 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 9 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 10 | Manas National Park | 🇮🇳 India |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hanoi | 🇻🇳 Vietnam | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 3 | Singapore | 🇸🇬 Singapore | |
| 4 | Bangkok | 🇹🇭 Thailand | |
| 5 | Kolkata | 🇮🇳 India |
Rare
Under 5% of wildlife watchers report a Crow-billed Drongo sighting in Gunung Leuser National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 114th most-seen of the 166 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.
March
In that month about 20% of wildlife watchers report a Crow-billed Drongo in Gunung Leuser National Park on a given day, against under 5% in February and April–November, the lowest months. That is one of Gunung Leuser National Park's driest months, with about 180 mm of rain against 700 mm in September.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Crow-billed Drongo sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 10
Of the 10 parks where we can rate Crow-billed Drongo sightings, Gunung Leuser National Park ranks 4th at under 5%. The best odds are in Khao Sok National Park (Thailand, about 10%), Royal Bardia National Park (Nepal, about 10%) and Cuc Phuong National Park (Vietnam, under 5%).
GBIF citizen-science records
It is estimated from how often the Crow-billed Drongo is recorded against all the birds logged in Gunung Leuser National Park (15 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.
