E Wallhäusser

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Newly hatched chicks of the domestic fowl (White Leghorn) were imprinted to an acoustic stimulus (Group I: 400 Hz, 3 bursts per s, Group II: 900 Hz, 2 bursts per s) and tested in a straight runway with loudspeakers behind two opposite goal boxes. Those chicks were considered imprinted which headed for the imprinting stimulus in an approach test and(More)
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