Toque macaque Toque macaque The toque macaque ("Macaca sinica") is a reddish-brown-coloured Old World monkey endemic to Sri Lanka, where it is known as the "rilewa" or "rilawa" (Sinhala රිළවා), (hence "rillow" in the "Oxford English Dictionary"). With age, the face of females turn slightly pink, prominent in the subsp. "sinica". "M. s. sinica" is found from the Vavuniya, Mannar, up to the lowlands of Anuradhapura, Polonnaruwa, Puttalam, and Kurunegala along the arid zone of Monaragala, and Hambantota districts. "M. s. aurifrons" can be found sympatrically with subsp. "sinica" within intermediate regions of the country, such as Kegalle, parts of Kurunegala. They
Macaque in check. For example, if 80% of females are sterilized every five years, or 50% every two years, it could effectively reduce the population. Other control strategies include planting specific trees to provide protection to native birds from macaque predation, live trapping, and the vaccine Porcine Zona Pellucida (PZP), which causes infertility in females Macaques have a very intricate social structure and hierarchy. If a macaque of a lower level in the social chain has eaten berries and none are left for a higher-level macaque, then the one higher in status can, within this social organization, remove the berries from