Cuculus crassirostris
The Sulawesi Cuckoo (Cuculus crassirostris) is a captivating and robust cuckoo, endemic to the biodiverse island of Sulawesi and its immediate satellite islands. Measuring approximately 30-32 cm in length, it is characterized by its dark slate-grey upperparts, contrasting with a paler grey throat and breast that fades into a clean white belly. Its most distinctive field marks include a notably stout, black bill, a prominent bright yellow orbital ring that encircles its dark eyes, and often a ...
This cuckoo thrives in primary and mature secondary lowland and montane forests, often preferring dense canopies and forest edges. It can be found at elevations ranging from sea level up to approximately 1,800 meters.
Its diet primarily consists of large insects, with a particular preference for hairy caterpillars, mantids, and cicadas, which it gleans from the forest canopy.
The Sulawesi Cuckoo is a largely secretive and solitary bird, often detected more by its distinctive vocalizations than by sight, as it spends much of its time concealed within the forest canopy. It is a diurnal species, foraging actively during the day for large insects. Like many members of its...
The Sulawesi Cuckoo is strictly endemic to the Indonesian island of Sulawesi, where it is widely distributed across both the main landmass and several of its satellite islands. Its range extends to include the nearby Peleng Island and the Sula Islands (specifically Taliabu), maintaining a stable,...
Least Concern
- The Sulawesi Cuckoo's robust, thick bill is a distinguishing feature, setting it apart from many other Cuculus cuckoos which typically possess more slender bills. - Its bright yellow orbital ring is a key identification mark and adds a splash of color to its otherwise subdued grey plumage. - Th...