Birds perceive colors in categories just like people do

A female zebra finch (Taeniopygia guttata) with colored discs that she had been trained to flip over. The birds were rewarded with a food treat hidden underneath if they flipped over a bicolored paper disc, whereas a solid-colored disc revealed nothing.
(Credit: Ryan Huang / Terra Communications, LLC)

How red is β€œred enough”?

Experimental design: although male zebra finches are depicted in this artist’s rendering, female zebra finches were trained for this study. The birds revealed a well containing a food reward if they flipped over a bicolored circular paper disc. The well beneath a solid-colored disc was empty.
doi:10.1038/s41586–018–0377–7

Why are female zebra finches so fixated on red?

Why does categorial color perception matter?

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PhD evolutionary ecology/ornithology. Psittacophile. scicomm Forbes, previously Guardian. always Ravenclaw. discarded scientist & writer, now an angry house elf

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𝐆𝐫𝐫π₯π’πœπ’πžπ§π­π’π¬π­, scientist & writer

𝐆𝐫𝐫π₯π’πœπ’πžπ§π­π’π¬π­, scientist & writer

PhD evolutionary ecology/ornithology. Psittacophile. scicomm Forbes, previously Guardian. always Ravenclaw. discarded scientist & writer, now an angry house elf

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