Summary ²

The Oriental cuckoo or Horsfields cuckoo (Cuculus optatus) is a bird belonging to the genus Cuculus in the cuckoo family Cuculidae. It was formerly classified as a subspecies of the Himalayan cuckoo (C. saturatus) with the name Oriental cuckoo used for the combined species. Differences in voice and size suggest that they should be treated as a separate species. The binomial name Cuculus horsfieldi has often been used instead of Cuculus optatus but

Sources and Credits

1. (c) Bruno Durand, some rights reserved (CC BY-NC), uploaded by Bruno Durand
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Cuculus_optatus

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