Or, as it rises, the high-soaring cranes
Flee to the hills before it, or, with face
Upturned to heaven, the heifer snuffs the gale
Through gaping nostrils, or about the meres
Shrill-twittering flits the swallow.
—Georgic i. 373.
In blushing spring
Comes the white bird long-bodied snakes abhor.
—Georg. ii. 320.