Yo, DRY ONE.

I think you might be mistaken.

J D Salinger employed the phrase 'strictly for the birds' in Catcher In The Rye (1951), and that seems to be the earliest known usage. In 1957 a writer in the journal American Speech wrote, 'The metaphor alludes to birds eating droppings from horses and cattle'.
Lol, either way, I don't care. ~