'Flying' in the Bible

Don’t rejoice, all of you in Philistia,because the rod of the one who struck you is broken.For a viper will come from the root of a snake,and from its egg comes a flying serpent.

An oracle about the animals of the Negev:Through a land of trouble and distress,of lioness and lion,of viper and flying serpent,they carry their wealth on the backs of donkeysand their treasures on the humps of camels,to a people who will not help them.