Ground squirrels are part of the squirrel family but live on the ground instead of trees. They are social and live in colonies in holes in the ground. Their total length is 40-50cm and they weigh 500-1000g. (Xerus inures - Grondeekhoring) Sorry for the squirrel in the foreground that is not 100% in focus, but you get the picture.
The Sociable Weaver can be distinguished by it's light coloured, blue-ish beak, it's black face and throat. They are very social and can always be found in groups. They become about 14cm. ( Philetairus socius - Versamelvoël)