We recorded a Himalayan cuckoo (Cuculus saturatus) killing two grey-cheeked fulvetta nestlings (Alcippe morrisonia), then picking them up in its bill, and tossing them out of the nest. The event occurred in a secondary forest on the hills of Huben Village, Linnei Township, Yunlin County in the central Taiwan on 10 April 2007. To our knowledge, it is the first record of an adult Himalayan cuckoo killing nestlings in a potential host's nest.