I have very good fields that were originally planted as horse pasture, clover/timothy/rye/brome and I do not believe it would be enough to support my meat birds. I have CX, colred range broilers from J&M, and Dixie Rainbows from S&G. The CX have been on pasture for 2 weeks but did not really start utilizing it until last week when I threw some of my colored range chicks in with them. When they started to see the range chicks feasting on the clover the CX finally got the idea and started going to town. At this point I am feeding in the evening in a chicken tractor and then opening the tractor during the day and letting them range as much as they want. They are sharing this pasture with my horses so there are plenty of bugs around.