Our grass is still green. I have thrown hay a couple times for the horses in the morning and they walk right past it.
They might munch on it "just because" when they come up in the evening while they're waiting for the signal to come in the barn for the night. Most likely they just line up at the fence and take a power nap.
I do make everyone eat one or two pounds of hay in the morning before they get their supplements and get turned out. There's generally a 3 hour gap between that hay and turn out time; if there wasn't any grass for them, they would go right to the hay I put out.
They get 4 - 5 pounds apiece when they come in at night; 6 - 7 pounds of hay per day per horse is not hardly enough to sustain them, so that tells me there's still some nutrition in the grass.
The four of them are at good weight. They have 22 acres but I notice they've been spending a lot of time down in the bottomland; the grass has always been exceptionally rich in that area because it's in the section where the overflow from the neighbor's pond is.
There can't be much sugar/starch in it because my two metabolic horses have not worn grazing muzzles since early November and they are both doing very well in that regard.
We've had plenty of rain and just enough warmth to keep the grass from turning brown; some parts of the yard almost look like they could stand to be mowed
This winter started out the complete opposite of last year and I hope it stays "unusually warm" until April