At about 11 pm, I heard a loud impact on the nearby glass door to a second-floor balcony. I thought it might be an acorn but it'd be a very unlikely angle - it'd have to be thrown from below or be a very strange ricochet.
I've never seen one of these before. What is it? Are those giant serrated appendages on the front mandibles or antennae?
I expect it's not as hazardous as it looks, but is there any risk of it biting people or pets?
Do they routinely launch themselves two stories into the air, or would it have crawled up and then just bounded from the balcony floor?
Location: Southern Oregon, USA.