It took me a while to figure out what triggered the camera in this series.
I found it though! You should be able to see it if you click the pictures to enlarge them. If you get stuck, there are three hints under the picture of the deer.
Hint 1: Look for the glow of the eye.
Hint 2: It is in the lower right quadrant.
Hint 3: It squeaks and has a long tail.
Hint 2: It is in the lower right quadrant.
Hint 3: It squeaks and has a long tail.