Consider the woodpecker.

A complete package...as I listen to one pecking away.

First of all it has unusual feet for a bird, for they can take all positions on a branch, not nearly merely as a place to a light.

The noise I hear is a rapid burst of tapping.
Maybe eight to 10 Taps per second.
These burst groups are increasing in their frequency.

It is the woodpeckers way.
A complete package.

How does the woodpecker know to do these things and how does the woodpecker come to feel that it is commonplace. Obviously, the woodpecker would believe that all creatures should could and would do the things that the Woodpecker does. Not only is its physical form fine tuned to perform it's task, but it's existence is fine tuned to accept, to perform, and to think that to bang its beak into the limb is a normal and natural thing to do.

It is not merely its physical but also its existential package which makes it complete.

Is it just instinct?

We may say, it is only instinct and that the woodpecker merely does what Instinct has told it to do. The instinct has evolved along with the woodpecker to fine tune itself to the physical woodpecker form. But is it instinct? For following the path that the Instinct provides does the woodpecker find happiness, contentment, purpose, food, reproduction and home. It is not a cat or a dog and it knows not the ways of a cat or a dog. It is a woodpecker complete and whole. The woodpecker does not know how to stalk and pounce upon its preylike a cat. We do not put the woodpecker on a leash and take it for a walk. The woodpecker does not know how to swish it's tail like a squirrel nor spin a web like a spider nor surf the internet.

It is self contained and complete except for its mate.