- By analyzing audio and video vocal recordings from a captive colony of 48 African penguins, a highly social and vocal sea bird, Italian researchers have decoded the Penguin language.
- The penguin language has 4 essential vocalizations:
- Contact call – emitted by isolated birds.
- Agnostic call – which signals aggression.
- Ecstatic display song – uttered by single birds during the mating season.
- Mutual display song – sung by pairs at their nests.
- This is however a basic description of their calls.
- The vocalization exhibits clear harmonic structure. During the call the bird stands up, extends its neck as much as possible and calls with its beak half open.
- Birds make sound from syrinx, which is different from larynx (voice box in humans).
- Read at: http://www.thehindu.com/todays-paper/italian-researchers-decode-penguin-talk/article6278728.ece