It's pretty likely that the deer are bedding in the CRP. I like to hunt edges of fields especially just inside the woodline in the corner of the field. This can act as a funnel area at times. The deer will stay in the wooded area and out of the field most of the time. Also there looks like a couple of peninsulas of trees sticking out into the CRP. Check these areas for staging areas. Sometimes deer will stage up in these places before heading out into the fields at night. Also, as mentioned before, check for crossing areas in the creek. Even if it's almost dry, the deer will use crossing areas. Find one and you'll see deer. Good luck!