Brightly colored feathers are markers of health that birds are drawn to because they have genes that attract them to those features. And as a consequence in many birds it is only the males that have colorful plumage. The better to attract the females, who will perceive good health and good breeding capabilities.
On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.
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