Cuculus fugax
Silhouette: Nicolas Huet le Jeune and Jean-Gabriel Prêtre (vectorized by T. Michael Keesey) · PhyloPic
In 3 days <5%
Hodgson's hawk-cuckoo (Hierococcyx nisicolor), also known as the whistling hawk-cuckoo, is a species of cuckoo found in north-eastern India, Myanmar, southern China and southeast Asia. Hodgson's hawk-cuckoo is a brood parasite. The chick evicts bona fide residents of the parasitized nest, thus becoming the sole occupant. Under normal circumstances, this would reduce the provisioning rate as the foster parents see only one gape. To counteract this, the Hodgson's hawk-cuckoo displays gape-coloured patches of skin under its wing to simulate additional gapes; the strategy appears to increase the provisioning rate. This is in contrast to other species of cuckoo (such as the common cuckoo) which increase the rapidity of high pitched hunger calls to increase the provisioning rate.
Although the skin patch is not gape shaped, it is convincing: host parents occasionally place food into the patch. Hodgson's hawk-cuckoo was formerly regarded as having four subspecies. The Philippine hawk-cuckoo is now commonly treated as a separate species, H. pectoralis. The remaining forms are also now split into three species: Malaysian hawk-cuckoo (H. fugax), Hodgson's hawk-cuckoo (H. nisicolor) and rufous hawk-cuckoo or northern hawk-cuckoo (H. hyperythrus).
The common name commemorates the British naturalist Brian Houghton Hodgson. Wikipedia →
Recording0:27
Thailand · 2022
© Kittakorn · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 3 | Sepilok | 🇲🇾 Malaysia | |
| 4 | Kinabalu Park | 🇲🇾 Malaysia | |
| 5 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia |
Rare
Under 5% of wildlife watchers report a Hodgson's Hawk-Cuckoo sighting in Kinabatangan Wildlife Sanctuary on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 217th most-seen of the 231 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Hodgson's Hawk-Cuckoo in Kinabatangan Wildlife Sanctuary on a given day, so our monthly data shows no clear season.
Among the best
Of the 5 parks where we can rate Hodgson's Hawk-Cuckoo sightings, Kinabatangan Wildlife Sanctuary ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Taman Negara National Park (Malaysia, under 5%), Danum Valley Conservation Area (Malaysia, under 5%) and Sepilok (Malaysia, under 5%).
GBIF citizen-science records
It is estimated from how often the Hodgson's Hawk-Cuckoo is recorded against all the birds logged in Kinabatangan Wildlife Sanctuary (7 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.
