My chicks are in 1 tractor near the house. Soon I will be getting more tractors and Hens that will be in the field to free range. Will they return to the tractor they were trained in? Will they defend from birds that belong in another tractor? Can the tractors be kept in a line about 10' apart or should they be spread out? Looking to grow some market eggs and have sooooo many question; its different from just having a few hens.