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A 1982 journal by Greg Roberts describes a Black Kite stealing bread from him and then using the bread to fish, dropping it into a nearby lake and waiting for fish to approach the food.

Roberts goes so far as to ask the question: are birds of prey learning from humans?

"The apparent use of a bait to attract the fish is even more unusual," he writes. This bird had evidently not only acquired a taste for live aquatic animals. It had apparently learned of their attraction to bread and exploited this knowledge by deliberately droppingscraps onto the water, thus attracting them to the surface and within striking range.

"Is it possible that this habit was learned by the bird observing human picnickers throwing bread-scraps into the river?"