What is a woodpecker?

Bird? Woodpeckers are collectively called woodpeckers.

The mouth is as stiff as a chisel; The tongue is long and flexible, with a short hook at the top; 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.

When woodpeckers come in spring, male woodpeckers will make a loud cry, which is that they are stretching their territory and warning others not to invade.

Because of the resonance of tree holes, these calls are often particularly loud.

Woodpeckers are especially quiet in other seasons.

Woodpeckers don't stand on branches like other birds. They climbed on the upright trunk.

Generally, birds all have four toes, with three toes facing forward and one toe facing backward; Woodpecker's four toes, two forward and two backward, have sharp claws at the toes. Its tail is wedge-shaped, and its quill is hard and elastic, which makes it a pillar to support the body when climbing.

In this way, woodpeckers can effectively grasp the trunk without slipping down, and can also jump on the trunk, move quickly along the trunk, jump up and down, or crawl in circles to both sides.

Extended data.

Woodpeckers are well-known forest birds. In addition to killing pests under the bark, such as longicorn larvae, the traces of chisel wood can also be used as an indicator of healthy logging in forests.

It is a common resident bird, and there are green woodpeckers and spotted woodpeckers widely distributed in China.

They feed on some pests, such as longicorn beetles, brown beetles, winged moths, smelly bedbugs, etc., and can eat about 1500 every day.

Because woodpeckers eat a lot and have a wide range of activities, in the forest of 13.3 hectares, if a pair of woodpeckers inhabit, more than 90% of insects can be pecked away in a winter.