Red sky at night... sailor's delight. Red sky at morning... sailor's take warning.
That comes from the book of Matthew.
Matt 16:2-3 But He replied to them, " When it is evening, you say, 'It will be fair weather, for the sky is red.' "And in the morning, 'There will be a storm today, for the sky is red and threatening.
Another one that comes to mind is the saying: A little birdy told me. That comes from the book of Ecclesiastes.
Eccl 10:20Furthermore, in your bedchamber do not curse a king, and in your sleeping rooms do not curse a rich man, for a bird of the heavens will carry the sound and the winged creature will make the matter known.
Can you think of any more?