How long ago did you take that pic of his bed and did you bump him when you did. Those lying down brown weeds around that bed look as if it's a recent picture. If it's recent and you didn't see him when you found it, did you feel the bed to see if it were warm and you spooked him before you were close? That area is really open and if you're in Michigan which I believe is where you live (you were at an in field seminar I gave about 20 years ago I believe), the chance of getting a shot out of any of those short, small diameter conifers is pretty close to zero this late in the season as I know you're a big guy and would stick out big time.
If you're in Michigan still, you should have snow on the ground and if you went in about 3 hours before daylight in complete ScentLok attire with a washed is scent free detergent snow camo suit and head cover over it or a Vertigo pattern suit, and opened up a little area behind some nearby deadfall, you might get lucky and get an opportunity. Try not to move a ton of deadfall around as doing so will knock the snow off it and will stand out more. The ground however must be bare and quiet.