Fun! Others have given you good advice. I agree that they will need to be supervised for a bit longer, till they are closer to full sized. This depends a lot on your risk tolerance, and your specific circumstances: Dogs in the neighborhood, hawks, fenced yard, cats? IMO, one of the most important thing to do with chickens is to teach them to come when called. Nothing more frustrating than trying to round them up before you leave to go to an appointment. Also, it's helpful if you can round them up if you become aware of some sort of threat. As other posters have stated, a bit of scratch in a can, and a special call that they associate with the goodies go a long way towards teaching them. It also helps if they don't have food out 24/7. A chicken who's looking forward to supper is more apt to return when called. If your run has been stripped of grass, it would benefit from a deep layer of mulch. This will change that baked cement soil into a loose moist soil that is laden with worms and insects to give the girls lots of foraging opportunities right in their run. A mulched run is also much more healthy, and less likely to harbor pathogens. You can use: grass clippings, fall leaves, garden debris, hay, straw, wood chips, and when ever you clean out the coop, just toss that used bedding right into the run. If you're having a hard time coming up with enough bedding for the run, you can contact a tree service and have them dump a load of wood chips. You'll be amazed at how quickly all the stuff you add will melt into the soil, and eventually, you'll have yards of compost that you can then use in your gardens.
