Birds
File:Cuculus optatus (AM LB11049-4).jpg

Oriental Cuckoo

Oriental Cuckoo

95
1 week ago
Not yet spotted on Fladder
Spotted
The Oriental Cuckoo (Cuculus optatus) is a migratory species found across parts of Asia, closely related to Horsfield's Cuckoo. It breeds in forested regions across temperate Asia and undertakes long-distance migrations to Southeast Asia and Australasia for winter. It is a brood parasite.
Where to spot
Breeds in a wide band across northern Asia, from Siberia and Mongolia to Japan and parts of China; winters in Southeast Asia, Indonesia, New Guinea, and Australia. Found in montane and lowland forests.
How to spot
Listen for its distinct four-note 'ho-ho-ho-ho' or 'ko-koh-koh-koh' call. Visually very similar to Horsfield's Cuckoo (C. saturatus), with grey upperparts and barred underparts; identification often relies on call and precise geographic location, as plumage differences are extremely subtle.
When to spot
During breeding season (spring/summer) in its northern range; during migration (spring/autumn) and winter (autumn/winter) in Southeast Asia and Australasia. Most vocal during breeding.
File:Cuculus optatus (AM LB11049-4).jpg
File:Cuculus optatus (AM LB11049-5).jpg
File:Cuculus optatus in Japan.jpg
File:Cuculus optatus (AM LB11049-4).jpg
Credits: Wikimedia Commons
File:Cuculus optatus (AM LB11049-5).jpg
Credits: Wikimedia Commons
File:Cuculus optatus in Japan.jpg
Credits: Wikimedia Commons
Its melancholic four-note call is a characteristic sound of vast northern Asian forests and woodlands during the breeding season, often heard resonating through the trees.
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