Game birds are shot in different ways. In driven game shooting, where beaters are employed to walk through woods and over moors or fields, dependent on the quarry and time of year and drive game towards a line of 8–10 standing guns standing about 50 or 60 metres apart. The guns will be members of a syndicate sharing costs, or have paid in the region of £25+ per bird for pheasants and much more for grouse. The total bag (number of birds shot) will be anywhere between 10 and 400, again dependent on the budget and quarry. The day may be very formal, and the head gamekeeper or a shoot captain will oversee proceedings. Great emphasis is placed on safety. Pickers-up with dogs are also employed to make sure all shot or wounded game is collected. On such estates, large numbers of pheasants, partridge and duck, but not grouse, are reared and released to provide sufficient numbers of game. Grouse cannot be reared intensively but the heather moorland where they live is intensively managed to maximise numbers.