With their database, the researchers probed 27,621 images from nine of the largest bird accounts. They found that the colours of a bird in an image significantly affected the liking behaviour of the viewers, making it more appealing aesthetically than others. They used an algorithm called ‘Image Aesthetic Appeal’ (IAA) to score the aesthetic appeal of the photographs based on ‘likes’. The score was positive for images that got more ‘likes’ than expected, and negative for those where the opposite was the case.
The Instagram accounts from where data for the research were collected included @best_birds_planet, @best_birds_of_world, @nuts_about_birds, @birdfreaks, @birdsonearth, @bestbirdshots, @audubonsociety, @bird_brilliance, and @your_best_birds.
The frogmouth topped the chart with an IAA score of 19. Second came colourful pigeons with decorative plumage with an IAA score of 17, and third was the emerald turaco with its crown-like head feathers was placed third with a score of 16.
The study showed that Instagram users were rather indifferent towards photos of munias, bee-eaters, pitta, and flamingos, with an average IAA score close to zero. On the negative side, the most disliked bird photo was of the sandpiper with a score of minus 22.
The researchers said their study also took into account human colour preferences – liking blueish objects over those with yellowish hues, explained by ecological valence that blue is linked to good things such as clear sky and clean water, while the rotten food is often yellow.
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