Bantams are suitable for smaller backyards as they do not need as much space as other breeds. Bantam hens are also used as laying hens, with some breeds laying up to 150 eggs per year. However, Bantam eggs are only about one-half to one-third the size of a regular hen egg.The Bantam chicken eats the same foods as a normal chicken.ld English bantam roosters were commonly used for fighting in Europe. They were smaller and faster than normal roosters used previously. Bantams do have a higher mortality rate when they are kept as backyard pets. They are easy targets for hawks, cats, foxes, or any other small predator.