The non-theistic perspectives:

It was the logical next step after coming down from the trees.

Darwin

The chicken was merely a machine and was crossing due to the deterministic nature of
the universe.

Rene Descartes

Out of custom and habit.

David Hume

The pure transcendental concept of the road, having been deduced a priori and without
dependance on intuitions, is given in the mode of the chicken, as an end in itself, while
crossing the road as a hypothetical imperative, namely, as acting towards some end allowed
by Reason.

Immanuel Kant

The chicken is dead.The road is nothing.

Soren Kierkegaard

It is not the chicken’s road, it is the PEOPLE’S road.

Vladimir Lenin

To escape the borugeois middle – class struggle.

Karl Marx

Because if you gaze too long across the road, the road gazes also across you.

Nietzche

To see the billions and billions of stars.

Carl Sagan

The chicken was female and obviously interpreted the pole on which the crosswalk sign
was mounted as a phallic symbol of which she was envious, selbstverstaendlich.

Sigmund Freud