Commonly found animals in the Margallas include rhesus monkeys, jackals (often heard cackling at night near the hills), wild boars, porcupines, mongoose and the pangolin or scaly anteater. The wild boar in particular can be seen at some of the least expected places in the city. While they generally stay close to the hills, occasionally (particularly in winter when the hills are cold and it snows on the peaks of Margalla hills) they can be seen quite far from the Margallas. Often the boars will have small hideouts in the green belts in and around the city. The increasing practice of throwing litter near the hills also attracts both monkeys and wild boar to come and forage through the rubbish. The wild boars can be quite large, very solidly built and usually travel in large groups.