Have You Ever Seen a Pink Gull?
Some gulls and terns may show a glowing pink color, similar to that of flamingos and spoonbills. This pink color comes from pigments in the birds' food called carotenoids. These gulls and terns are able to convert these naturally occurring pigments to hues that may enhance their success at attracting a mate.
More info and transcript at BirdNote.org.
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