Well, it seems as though my cornish X are not grazing much. I decided a few weeks back to leave a patch (of about 3000sq ft) in my yard for the chicken tractor to call home. It is about 8" tall in most areas. It looks lush and the grass is plentiful. However, the cornish are NOT putting a dent in the area in a 24-hour period. Therefore, I let it go 48-hours this time before moving. The poo added up indeed, and created a nice crust on the grass, but the grass was pretty much untouched. I am sure they grazed some, but NO dirt was exposed at all. Therefore, I decided to go ahead and cut it down 1/2 height, and I will see how that does tomorrow. Maybe the grass was too 'woody' for their liking. Regardless, I did want them to get down to the soil where additional protein would be. Anyone else experienced the cornish denial of tall grass? After I move the tractor, I take a rake to the grass/poo and fluff a bit back to new. Although you can tell something was there, it looks like it could easily rebound in less than a week. This practice is also reducing some of the nitrogen burn that I have experienced with my other chickens in the past when over one spot too long.