L A Manzig

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Dawson and Foss (1985) have reported that each of five naive budgerigars (Melopsittacus undulatus ) after watching a demonstrator budgerigar use one of three different methods of opening a covered food dish, used the same method as its respective demonstrator to uncover its own food fish. Our first attempt to replicate Dawson and Foss' experiment was(More)
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