I advise you not to shoot the three spring birds. The chicks are waiting in the nest for their mother to come back. China's ancient poetry not only stems from "the heart of the benevolent" and "the virtue of being good at life", but also contains the profound meaning of protecting bird resources. Three spring refers to the turn of spring and summer.
The breeding season of most insects begins in spring. If spring can inhibit the reproduction of insects, the number of insects in summer and autumn can be greatly reduced. Killing a fly in spring can reduce 1000 flies in summer. The breeding season of birds is also in spring. In order to feed the birds, parents must redouble their efforts to catch insects and bring them to the birds. This greatly inhibits the reproduction of insects.
The well-known cuckoo, also known as cuckoo, is an expert in eating pine caterpillars. It is observed that 1 rhododendron can peck hundreds of Dendrolimus punctatus in one hour. Scholars in the former Soviet Union once inspected the young birds of rhododendron: a young bird can eat 4 small lizards, 39 big green grasshoppers, 3 butterfly pupae, 43 cabbage maggots, 5 scarab larvae, 4 round spiders and 50 yellow powders every day? And a considerable number of big ants. They also recorded how the cuckoo saved the oak forest from the invasion of silkworm moths: although there were thousands of harmful larvae there, the cuckoo subdued them in just one week. After dissecting rhododendrons, it was found that there were 97 small silkworm moth larvae and 42 adult silkworm moth larvae in the stomach of each rhododendron. In other cases, there are 73 gypsy moth larvae and 18 very large pine caterpillars in each cuckoo's stomach.
Swallow is a small and medium-sized bird, and it is the star of locusts in Weishan Lake area of Shandong Province. The Institute of Zoology, Chinese Academy of Sciences observed that a young bird can kill nearly 5 10 locusts by eating 90 locusts every day on average, and nearly 6 1200 locusts in four months of breeding period. At this time, killing a parent bird is actually destroying a nest of young birds, which is equivalent to contributing to the occurrence of locust plague.
Owls are the stars of wild rats. According to the survey, owls wintering in Sheshan area of Shanghai can catch 3 15 wild rats in 5 months. If you kill 600 wild rats a year, you can get back 1 ton of grain from rats for human beings. Owls nest once a year, with 3 owls in each nest? There are two young birds in each nest of four eggs, so in the breeding period, killing one adult bird is equivalent to killing three owls, which is equivalent to being robbed of S tons of grain by wild rats. If we calculate that each person needs 300 Jin of grain per year, the annual rations of 10 people have been stolen by wild rats.
According to scientists, a nest of domestic swallows can prey on 500,000 insects in a summer? 1 ten thousand; A titmouse preys on insects every day, which is equal to its own weight. How much food these birds have snatched from the worms' mouths for us!
At present, there are 1 198 species of birds in China. Except for a few birds who are addicted to grains, fruits, fish and frogs. Most birds live by catching insects and rodents or looking for weed seeds. They are the guardians of agricultural and forestry production. So protecting birds is protecting food. Spring is the breeding season for all kinds of birds. If you don't kill these three spring birds, you can give these birds a chance to thrive and make their population grow and recover.