I've been rabbit hunting all my life, and it doesn't look like a rabbit to me.
Well same here, but those swamp rabbits can be pretty dang big, and don't look quite the same as cottontails. The reason I thought rabbit is because it kind of looks like the inside of an ear where I circled in white, below, and it appears to be fairly long if it is
an ear. But I don't even know if they have swamp rabbits where he's at.
The shape and size looks like a young porcupine to me though.