Who is Chickadee 65290 from A Sand County Almanac and what is their importance?

The atom in nature used to be free to roam about as it pleased. This is no longer the case. Now it is subjected to restraints and boundaries that are completely unnatural. Yet, are these boundaries enough to truly constrain the atom? An atom leaves a group of rocks where it has been laying for a couple thousands of years, then it goes into the soil and is absorbed by a plant. It moves to the leaf and is eaten by a deer who is then shot by a person and is eaten by them.