Technological advances for getting insight into the learning capacities of birds in the vocal domain
Birds produce different types of sounds in different contexts such as begging for food in youngsters, alerting to
a danger, defending a territory or attracting a sexual partner. About half of the bird species are able to transform their
vocalizations through imitation, improvisation or invention of sounds. Here we review the different experimental procedures that
have been used to study the learning capacities of birds in the vocal domain and in the auditory domain, with a particular
emphasis on recent technological developments. Nowadays, it is possible to record individual vocalizations of birds living in
social groups or to record continuously the vocal ontogeny of birdsong. In conditioning experiments, new paradigms have
successfully replaced food rewards with a socio-sexual reward. It is possible to engage in vocal interactions with a bird using
dedicated computer systems. In both the laboratory and more recently in the field, different techniques have been used to train
young oscine songbirds to learn from acoustic models. The use of virtual social environments and robots as social agents are also
promising avenues. All together, these new techniques will permit researchers to explore more deeply the umwelt of bird
species.
Article outline
- 1.Introduction
- 2.Continuous vocal recording and analysis: From a single individual to group members
- 3.Controlled vocal interactions
- 4.Enhancing song tutoring
- 4.1Song playback
- 4.2Influence of visual stimuli
- 4.3Playback of vocal interactions
- 4.4Towards an integrative approach to study the influence of multimodality: Use of robots
- 5.Conditioning experiments
- 6.Future directions
- Acknowledgements
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Literature cited