Gouldian finch hatchlings are born with reflective blue beads on their beaks that look like tiny, creepy pearls, which actually help parents see and distinguish their babies in the dark.

https://video.nostr.build/6ef91aefd8e9cf6dff7a1873a3cf6fecd1c3631f5bb0d0873cfd497dba59f222.mp4

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