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Nature Acorn Woodpecker

2021.02.25 21:16

온기철*71 Views:20

https://youtu.be/rKrXQfw7dJw

Cornell Lab of Ornithology

 

The woodpecker constructs the holes on the tree trunk that are snuggly fit 

acorns to consume during winter. If it is too big, it will fall out.

If it is too small, it can not be inserted.

 

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