Feed mainly on grains. When the grain is ripe, they will fly to the farmland in droves to eat it. Eat some insects during the breeding period. Chickens are raised by insects.

Second, crows

Omnivorous, eating grains, berries, insects, carrion and eggs of other birds. Many species like carrion, which is harmful to seedlings and grains. However, in the breeding period, small vertebrates, locusts, crickets, scarabs and moth larvae are the main food, which is beneficial to farmers. In addition, because they like to rot and peck at agricultural waste, they can eliminate the pollution of animal carcasses and purify the environment.

Third, oriole

Most of them are resident birds, and a few species have migratory behavior, and they do not live in groups when migrating. Arboreal, flying between branches, feeding on insects, berries and so on. , rarely move to the ground. Oriole is a famous insect-eating bird.

Fourth, woodpecker

In addition to eliminating pests under bark, such as longicorn larvae, the traces of wood fragments can also be used as indicators of forest health logging. They feed on some pests, such as longicorn beetles, brown beetles, winged moths, smelly bedbugs, etc., and can eat about 1500 every day.

Five, quail

Mainly eat weed seeds, beans, grains and berries, tender leaves and buds. Eat a lot of insects and larvae and small invertebrates in summer.

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