We get some pretty cold temps and snow. But it’s our first winter with chickens, so I am a relative novice, only having chickens for 10 months (currently at 21 chickens at 2 ages)
My chickens love scratch, but it gets them moving for 15 min tops. We dump leaves and grass clippings in there, sometimes hay, so at this time of year, it’s just damp brown stuff on the ground and certain chickens seem more interested in scratching than others. Our water and feed are in separate locations, so they move around for those.
This fall, on a whim, I bought 12 Brussel sprout starts to plant in the raised bed. They grew well, we harvested the sprouts for human consumption and are left with the stalk and leaves still in the ground. Periodically, I pull up a stalk and toss it into the run. They love the leaves and any small sprouts still attached. The peck, pull, scratch till there is a bare stalk. Brussel sprouts tolerate the cold really well. If you have the space, I found this an unexpectedly useful treat.
Recently I purchased some alfalfa cubes. I added water to a couple to re-hydrate (which took longer than expected), then gave them to the chickens, but kept them in a container rather than tossing it in. This was for greens, and these alfalfa cubes are 16% min protein. Well, the chickens just weren’t sure about them...but by the next morning, one container was eaten, but the other didn’t seem to be touched, but I had put it out in the later afternoon, so maybe many of them had filled their crops with feed pellets before I gave them alfalfa.
Most likely we will toss in some hay now and again. When they get a new pile of anything, they scratch and dig for quite some time. But that isn’t an every day occurrence.
Good luck!