A female with 4 different males over a period of 3 days in the highest tree of a forest hill near ponds.
The fossas where meowing during the mating while a dozen of parrots in an adjacent tree were squawking loudly like if they were answering to the vocalizations of the fossas.

The coitus was sometimes intersperse with violent blows of paws or jaws.
4 Male fossas were waiting in the same tree lying on other branches. Some of them looked completely exhausted.