It looks like a a lovely camellia bush. Not sure about safe for bunnies - most evergreens are not. I have mine fenced off from bunny attack with some chicken wire mesh round the base, but it is somewhat smaller than your specimen and they haven't tried to eat it. If you are worried about it being eaten, you could clear the bottom foot or so of the stem so that it less tempting, but it is a lovely bush as it is. They are also slow growing so will not do well with a really hard pruning.