Some time ago, I modified our old bird feeder to serve as a squirrel feeder. Corn kept "disappearing", but I'd never seen who was eating it. Then, this morning, while the feeder was still in the shadows, I finally saw this guy. I already knew from previous experience that my going outside would scare any mammals away {the birds seem to be slightly more tolerant of my presence}, so I took these pictures through the very imperfect glass doors out to our deck.
The next time I see him, I may try going out the front door and walking very quietly around the house, but the way he looks in every direction before eating a few bites makes me guess that I'm not going to fool him.
BTW: these pictures were taken using an old Tamron 23A AdaptAll lens {60-300mm lens} @ 300mm, 1/400, f/5.8} hand-focused, hand-held, exposure determined by green button on my K-30