Here is an interesting find inside a tree for this #treetuesday by 
Baby raccoons in a tree hollow!
This is their den from the outside. I was just crashing around in the forest with my fiance looking for rare birds with my zoom lens and decided to look inside.
These little guys started making noises when I looked in.
They wondered if I was their mom.
Each one made a round to look at me from the opening.
Once they figured out I wasn't their mom they started climbing into the tree hollow to safety.
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From @sketch.and.jam