'Blushing' Macaws Are Communicating
The authors studied five hand-reared captive blue-and-yellow macaws (Ara ararauna) interacting with one another and with their human caretakers. They assessed the feather position (ruffled or sleeked) on the crown, nape, and cheek, as well as the presence or absence of blushing on the bare skin of the cheek. They found that feather ruffling was more common when the birds were not in motion, such as during social interactions and resting periods.
This is a ‘Blushing’ macaw (left) compared to a ‘non-blushing’ macaw (right).
Credit: A. Beraud
“How birds use facial displays and whether they communicate their inner subjective feelings is a question that is crucial to deepening our understanding of bird sentience,” say Bertin et al. “Although caution must be exercised when interpreting these data due to the small sample size, we argue that crown ruffling and skin color variation may provide facial indicators of birds’ inner subjective feelings. On a practical level, parrots are popular companion animals, with millions of parrots being kept as pets, and understanding visual communication in parrots may help to assess their well-being in captive conditions.”
Bertin summarizes: “Blushing may not be a characteristic unique to humans: the featherless cheek of the blue-and-yellow macaw parrot reveals rapid skin color changes in situations associated with emotion. The macaw’s particularly complex face may enable communication of emotion via color and feather displays.”
Contacts and sources:
Aline Bertin
PLOS
Citation: Bertin A, Beraud A, Lansade L, Blache M-C, Diot A, Mulot B, et al. (2018) Facial display and blushing: Means of visual communication in blue-and-yellow macaws (Ara Ararauna)? PLoS ONE 13(8): e0201762. https://doi.org/10.1371/journal.pone.0201762
Source: http://www.ineffableisland.com/2018/08/blushing-macaws-are-communicating.html
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