Yep, that's what I thought it was from the shapes of the leaves and the way it branches. We're loaded with them up here in the Adirondacks, but I had no idea that deer would eat from them. Maybe it's a different variety.
On the other hand, I'm right on the edge of the river and at this time of the year I see the beaver towing some of it upstream just about every morning for the past week. LOL, climate change is coming and she's getting ready for it.
I had a black birch fall over near one of my stands. Leaves were still green. By the next weekend, it was completely bald. I've also seen deer eating red maple leaves from the ground. Not on branches, leaves that fell in the fall. I think they are high in sugar content when they are red. If they get them in the first day or two after they fall, they are a real treat.