Lessee, I haven't thought about this since I gave HR hooves.
Species: Caribou-raven (Corvus rangifer)
Height: Since I'm digitigrade now, I'd say a little over 6 foot, not counting the antlers. Antlers included, probably closer to 7 foot. IRL, I'm 5'11" plantigrade.
Weight: HR has birdie bones, so less than what a mammal of equivalent size would weigh. Kinda chunky, but not too badly overweight.
Tail: Maybe 6 inches. It's a feathery little caribou nub.