by Melina Fredes
Honeyguides birds are also ferocious brood parasites. Honeyguide birds in Africa are well known for their mutualistic interspecific interaction with human. But honeyguides are also brutal brood parasites of many birds such as hoopoes, woodhoopoes, scimitarbills, and bee-eaters (link with more info from evolutionary biologists studying brood parasites)
Check this link for more information.