Centropus bengalensis
Silhouette: Nicolas Huet le Jeune and Jean-Gabriel Prêtre (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~10% in a week ~30%
The lesser coucal (Centropus bengalensis) is a species of cuckoo in the family Cuculidae. It has a wide distribution range that overlaps with several other similar species. The habitat in which it is found is often marshy land with grass and tree cover. It is distinguished by its smaller size, less prominent bill, pale shaft streaks on the feathers of the head and back. It has a much longer claw on its hind toe and a distinct call. It is also among the few coucals that show season plumage differences but like in other coucals, the sexes cannot be distinguished in the field.
The lesser coucal was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other cuckoos in the genus Cuculus and coined the binomial name Cuculus bengalensis. Gmelin based his description on the "lark-heeled cuckoo" from Bengal that had been described and illustrated in 1776 by the English naturalist Peter Brown. The lesser coucal is now one of around 30 species placed in the genus Centropus that was introduced in 1811 by the German zoologist Johann Karl Wilhelm Illiger. The genus... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chattogram | 🇧🇩 Bangladesh | |
| 2 | Semarang | 🇮🇩 Indonesia | |
| 3 | Phnom Penh | 🇰🇭 Cambodia | |
| 4 | Thrissur | 🇮🇳 India | |
| 5 | Bandung | 🇮🇩 Indonesia | |
| 6 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 7 | Jakarta | 🇮🇩 Indonesia | |
| 8 | Hanoi | 🇻🇳 Vietnam | |
| 9 | Singapore | 🇸🇬 Singapore | |
| 10 | Tainan | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Lesser Coucal sighting in Hanoi on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 67th most-seen of the 97 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Lesser Coucal in Hanoi on a given day, against under 5% in April–July and October–January, the lowest months. That is one of Hanoi's wettest months, with about 220 mm of rain against 20 mm in February.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Lesser Coucal 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.
8th of 24
Of the 24 cities where we can rate Lesser Coucal sightings, Hanoi ranks 8th at about 10%. The best odds are in Chattogram (Bangladesh, about 20%), Semarang (Indonesia, about 10%) and Phnom Penh (Cambodia, about 10%).
GBIF citizen-science records
It is estimated from how often the Lesser Coucal is recorded against all the birds logged in Hanoi (10 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.
