These all refer to night radiation, mist being dispersed by the sun’s rays. Fine, light, genial weather raises the spirits and exerts an enlivening influence not only on human beings but also on animals, birds, insects, &c. Hence the saying:
If larks fly high and sing long, expect fine weather.
When sea birds fly out early and far to seaward, moderate winds and fair weather may be expected.
If rooks go far abroad it will be fine.
Cranes soaring aloft and quietly in the air foreshow fair weather.
If kites fly high, fine weather is at hand.
Wild geese, wild geese, ganging out to sea,
Good weather it will be.
When owls whoop much at night, expect fair weather.
Bats, or flying mice, coming out of their holes quickly after sunset and sporting in the open air premonstrates fair and calm weather.