jan 1, 250 BC - Pseudo-Aristotle "On Marvellous Things Heard"
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§ 27.119 They relate a remarkable occurrence among the Heneti; for countless thousands of jackdaws come to their country and consume their grain, when they have sown it; before they are about to fly over there the Heneti put out gifts for the birds on their boundaries, putting down seeds of all kinds of fruits; if the jackdaws taste these, they do not pass over the border into their country, and the Heneti know that they will be in peace; but if they do not taste them, they expect as it were an invasion of the enemy.
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