You can't be serious with this silly question dear.
wow, a "Naturalist"....I like Naturalists, I was an Environmental Geologist back in the late 80s and early 90s before people knew what that was...and recycled by beer cans in the 1970s before people knew what that was....and yeah I dumbed down the question because otherwise you get no response....
this may be far fetched but a bunny has to try. you go up to an opening, any opening, and call it 'sir'. if it says, "you don't say sir to me - i work for a living!' - there, you'll have your answer