This female Northern Cardinal has a brood patch, which is a bare spot on her belly. This adaptation provides direct contact between her eggs and her warm skin during incubation.
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https://t.co/vFJIP7gpw6 https://video.twimg.com/amplify_video/1814816035981115393/vid/avc1/720x984/LtH0bU_2oOZYqgPH.mp4?tag=16