Corn and Crows

I'm on a bit of a Stephen King kick this week, watching a few of his movies.  And I have one question that has been bothering me for years.

What is it with Stephen King putting both crows and corn in nearly all his stories?

I can't say nearly all, because even I haven't read all his books or seen all his movies, but I've read a fair amount and seen a good number, and everyone of his stories I've come in contact with has a bunch of crows and a corn field or two. 

Is there a hidden message in the corn we're not picking up on?

There is his Children of the Corn stories,   a corn field in his The Stand,  in The Secret Window the end has a few scenes of corn eating and a small corn row... and that's just what I can remember off hand without having to look anything up.

I get the crows. Crows represent death, spirits, occult, knowledge etc.   Okay, they make sense.  But the corn?

That's the view from my sofa this morning.