In nature, things aren’t always black or white, male or female.
In Texas, Pennsylvania, and elsewhere, people have reported seeing Northern Cardinals that are red on one side and brown on the other, indicating that a bird is half male and half female. This anomaly occurs in other species of birds, as well, not just cardinals. Insects, too! Scientists call these bilateral gynandromorphs.
More info and transcript at BirdNote.org.
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