Alternative name: Brain-fever Bird
- Hierococcyx sparverioides
- Brown above
- Ashy-grey crown, nape and neck
- Brownish grey and black barred tail
- Black chin, white throat and rufous breast, throat and breast dark-streaked
- White belly with blackish bars
- Yellow eye-ring
Juveniles have barred rufous and brown upperparts, a grey forehead, a white nape, a rufous and black barred tail and have buff underparts streaked with black teardrops.
Breeds in the Himalayas from northern Pakistan and India to Nepal and China (Sichuan and lower Yangtze valley), south to Burma, Thailand and Indochina.
Winters from southern India and Bangladesh to Thailand, Malaysia, Singapore, the Greater Sundas and to the Philippines.
Common to fairly common in its range, scarce in Singapore.
Feeds on insects, mainly caterpillars. Takes also berries.
Forages in the canopy, mainly solitary.
Breeding season June to July in the western Himalayas, April to June in Assam. A brood parasitic. Known host species are Laughingthrushes, Streaked Spiderhunter, Lesser Shortwing and Chestnut-capped Laughingthrush. Places one egg in hosts nest.
A migratory species. Subspecies bocki resident.
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- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Del Hoyo, J, A Elliot, and J Sargatal, eds. 1997. Handbook of the Birds of the World. Volume 4: Sandgrouse to Cuckoos. Barcelona: Lynx Edicions. ISBN 978-8487334221
- BirdForum Opus contributors. (2021) Large Hawk-Cuckoo. In: BirdForum, the forum for wild birds and birding. Retrieved 12 April 2021 from https://www.birdforum.net/wiki/Large_Hawk-Cuckoo