Well this doesn't involve critters but still pretty cool.

One year I was in stand and witnessed something awesome. It was a warm humid morning with overcast skies and no wind. After 2 hours on stand I started hearing what I thought were raindrops hitting the forest floor. Upon more careful inspection the droplets weren't falling from the sky but rather the trees. This puzzled me because it wasn't raining the previous 2 hours so where could this moisture be coming from?

Upon even more careful observation, I realized that there was so much moisture in the air that droplets were transfering from the air onto branches and droplets were accumulating til they were falling off the branches. It was sooo cool because you could watch as droplets clung onto the underside of branches andget bigger and bigger right before your very eyes then fall to the forest floor. It was as if the forest was singing to me. Unforgettable.