For several reasons. One is to get the insects in the tree, another is to get the sap, another is to store food, generally for winter.
A woodpecker could peck no peckers because no woodpeckers would peck peckers.
Seven.
About 15 pounds
How much time wood pecker peck on a tree in a second
The cylindrical shape of a gutter spout looks like a tree branch to a woodpecker. The woodpecker is just looking for insects to eat.
no
They peck anything they see
The word woodpecker has three syllables. (wood-peck-er)
Woodpeckers can peck at up to 150 times a minute.
A woodpecker can peck 20 times a second.
Absolutely beneficial, their only reason to peck on trees is to get at the insect parasites that are infecting the tree, if there are no insects there the woodpeckers will not even visit a tree.
The Woodpecker Tree Decoration has metal stakes that it attaches to the tree with.