Mimicking monkey calls has found to be a cunning hunting strategy of the Margay, a small wild felid.
In the Amazonian forest in Brazil researchers recorded this behaviour themselves. Until recently this behaviour was nothing more than anecdotal reports of Amazonian wild cats drawing primates into close range to attack by imitating their call. Fabiano de Oliveira Calleia and colleagues saw a Margay (Leopardus wiedii) using this trick on its prey, pied tamarins. The Margay was unsuccessful this time, but their observation (recorded in Neotropical Primates of June 2009) confirms the reliability of the information on similar behaviour in other wild felids, like Puma, Jaguar and Ocelot, provided by Amazonian inhabitants.
(Source: ScienceDaily, 9 July 2010)