Cavia aperea
Over the years, we have noticed increasing counts of these small guinea-pig like mammals at the reserve. However, now that we are once again a wetland it is somewhat surprising that we seem to have more than ever. They are especially prevalant in our garden and it is not difficult to approach within a few metres.
The Cuis as it is known in Argentina, is a medium sized rodent that tends to be crepuscular and probably nocturnal in habitated areas. One can certainly see and hear them during the day at the reserve especially when it rains probably due to little human disturbance. It is native to most of the countries in South America north of central Argentina and Uruguay.
It measures aproximately 20cm in length with dark fur on its back and lighter fur on its underside. It is tail-less and has a face that resembles a Coypu.
They are prolific breeders and prey for many species including the Maned Wolf, foxes and larger birds of prey.
