Ornithomancy
From BiblePortal Wikipedia
Webster's Dictionary [1]
(n.) Divination by means of birds, their flight, etc.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
(from Ὄρνις , a bird, and Μαντεία , divination), a species of divination practiced among the ancient Greeks by means of birds. SEE Augury