Goblins and Wargs trapping Gandalf, Bilbo, Thorin & Co in the woods to the East of the Misty Mountains:
Fly away little birds! Fly away while you can! Come down little birds, or you will get fried in your nest!
(crippled a bit, perhaps, but I can't provide direct quotation right now not having my book on me, will in a short while if it is required
)