rút cuộc là có lợi hay hại? Nó đục cây vầy rồi cây làm sao sống...

thấy nói là cây sẽ tự lành lặn sau khi bị đục lỗ...

...And what about the feeding holes left in the tree? This is an exciting bit of tree physiology! Trees are able to compartmentalize or isolate the wounds. After the woodpecker has made a hole to retrieve the insects within, the tree starts compartmentalizing the wound. How long it takes for a tree to compartmentalize a wound and close it depends on species and climate factors.
https://gardenprofessors.com/woodpeckers-friends-or-foes

Roasted Chicken

Hay qua!  They pecked through wood like an ax but with a little beak.