What are the main signs of improper scale and density in free-range chicken farming?

Some farmers blindly seek a large scale and, without securing sales, raise large numbers of chickens, resulting in excessively long holding periods and higher feeding costs; some, fearing losses, keep a small scale of only 100 to 200 birds as a sideline with extensive management, leading to failure. Some farmers, without first resolving ranging land and brooding space, blindly raise chickens at high density, causing slow growth and a low survival rate. A chicken shed is put up in an orchard and the chickens are left to move about freely, so that the orchard near the shed has not a blade of grass left and the soil becomes hard and compacted, while the weeds farther from the shed grow thickly, so scientific rotational grazing is not achieved. Some farmers, in order to have chickens for sale all year round, raise several batches of large, medium and small chickens together.