"Why" did the turkeys cross the road?
According to Merriam-Webster -
"for what cause, reason, or purpose"
So - for what cause did the turkeys cross the road?
the sign says - to get to Arbor Vitae
"Why" do I go out in the snow and subzero temperatures to take photos?
Reason - The age of reason compels me to
It would be easier to take photos from the warmth of my house of the full moon illuminating the frost on my windows
"Why" do alien ice ships voyage the vastness of time to our shores?
Maybe they have no porpoise - and I have no purpose in making that pun
Lets reflect on this for a moment
There is no why - birds do it
And even photographers do it.