“ SAND-GROUSE. A game bird of the family Pteroclidæ, related more nearly to the pigeons than to the grouse. There are rather more than sixteen species, chiefly African, but five are Asiatic and two of these occur also in Europe. They are in all important respects terrestrial pigeons, modified for a grouse-like life. The genus Syrrhaptes contains the three-toed forms, of which there are two species. They have the feet feathered. ”