Characteristics of woodpeckers

He has a strong mouth, a long tongue and a hard tail. He lives in the forest and likes pecking at trees to catch insects. His mouth is as stiff as a chisel, his tongue is long and flexible, and its tip is very short. Feet are slightly shorter, with 4 toes, 2 toes forward and 2 toes backward; The tail is flat or wedge-shaped, and the tail feathers are mostly 12. Feather stems are hard and elastic, supporting the body when pecking at wood.

Extended data

1, woodpecker working scene

In the Woods, people sometimes hear the sound of "Benedict, Benedict, Benedict". If you stand on tiptoe and hold your breath, you will find that this is a "doctor" woodpecker working in the forest.

It has been passed down from generation to generation and feeds on insects. When it landed on the tree, it raised its "scalpel" and pecked at the east and west. From the sound of knocking on the trunk, it learned the hidden parts of the pests, then pecked out a small hole in the tree, put its slender tongue in, and hooked the insects out with the mucus and small hooks on it to eat.

Woodpeckers are diligent and never lazy. They beat the trunk 500-600 times a day. Some people have calculated through high-speed photography that the impact speed of woodpeckers pecking at trees is 2080 kilometers per hour; When the woodpecker's head bounces back from the tree, the impact of its deceleration is also so great, which is about 1000 gravity constant.

2. The role of woodpeckers

Some pests lurk deep in the trees and kill them alive. Only woodpeckers can take it off the trunk. Because woodpeckers' staple food is pests, it is very beneficial to prevent and control forest pests and develop forestry, so everyone calls them "forest doctors".