Nomadic peoples wander from one region to another in search of pasture land for their herds.
Crows, unusally intelligent birds, make interesting pets. But farmers consider wild crows pests, since they are often destructive in their constant quest for food. Crows help farmers, however, by eating enormous quantities of insects. They also help to keep highways clean, for they eat not only animals killed by automobiles, but also the litter thrown out by travellers. I am a poor chess player.