Brad Reed's Day 174 of 366 I could hear this little chipmunk inside of a huge downed tree in my side yard, but I couldn't see it. I positioned my camera and tripod near one end of the hollowed-out log and had my focus and exposure already set. Then I used my iPhone and Googled chipmunk sounds. It didn't take long for the chipmunk to come and take a look to see where that enticing sound was coming from. Nikon D850. F6.3 at 1/250, ISO 12800. 60-600mm lens at 600mm. June 22, 2020, at 7:53 PM.