Head nodding in bald ibises geronticus eremita

Sahin, R.

Journal fuer Ornithologie 131(4): 445-452

1990


Accession: 007389609

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Abstract
The head-nodding in adult Bald Ibises has been developed during ontogenesis from the head movements of the nestlings while begging for food. As a partly ritualized behaviour, in connection with reproduction probably its only function is to stabilize the pair bond. Generally, beside greeting it has the function to inform and/or to motivate the partner or the colony members as well to fly away.