I recently got chickens, I have four in a 4x6 chicken tractor with an attached 4x7 run. I was moving it around the yard, but it was really tearing up the grass, so I currently have it parked in a space I want to prep for a garden bed. I ordered a bigger coop and will be moving the chickens to the big coop in two weeks when it comes in. To give them the greens they are not getting because they are stationary I have been throwing them grass, they ignore it, I put in a bunch of Kale, they are not eating that either, they are ignoring all of the other greens I am giving them. I am a bit worried as they are no longer getting fresh grass, they have plenty of crumble, and I give them scratch now and then as well. Do I need to chop their greens (I just threw kale tops in their run) or what?