Symbolic Communication Between Two Pigeons, (Columba livia domestica)

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Science  01 Feb 1980:
Vol. 207, Issue 4430, pp. 543-545
DOI: 10.1126/science.207.4430.543


Through the use of learned symbols, a pigeon accurately communicated information about hidden colors to another pigeon. Each verbal exchange was initiated with a spontaneous request for information. The two pigeons engaged in a sustained and natural conversation without human intervention.