 i don't know why you do you think that there is a book the first for your question what my rabbits are all much i've got one racks who is one of what i percent right but the rest of our all much of it they're they're trying to call between two and three pounds so i think they're part gotcha are in a great old rascals uh... and your second question i don't actually have night vision uh... where we're really uh... low-budget investigated we have binoculars uh...