The Klaas's cuckoo (Chrysococcyx klaas) was named by French explorer François Le Vaillant after his Khoikhoi servant. Le Vaillant was the only colonial biologist to name some bird species after local people. Native to the wooded regions of sub-Saharan Africa, males have a glossy green body with few markings and plain white underparts. Females have a bronze-brown body, greenish wing coverts and faintly barred white underparts.
