When harvesting wheat in northern my country, there is a bird that sounds like a whistle. What is the name of this bird?

The scientific name is cuckoo, which is a cuckoo, also known as cuckoo. Most of them live in the woods in tropical and temperate areas. In ancient times, Zijuan, Zigui, Shrike, Xiebao, Duyu and Dujuan all referred to this kind of bird. The general name of the order Birds, order Cuckooriformes, family Rhododendron, and genus Rhododendron.

The cuckoo flies back to Europe in the spring and rests on wood piles, branches or wires to call for mates. The cuckoo gets its name from its call: an easily identifiable "coo" sound. The flight was rapid and silent. Before and after Mangzhong, its loud and somewhat sad cry can be heard almost day and night. The characteristic of the cry is four tones at once - "cuckoo cuckoo, cuckoo cuckoo".

Extended information:

The legend of the cuckoo’s habits:

According to legend, a long time ago, the trees in the forest grew lush and lush, and there were many birds living there. Birds are one of them. Spring is here, the weather is warm, and birds are busy building nests for themselves. The little swallow wears black clothes, carries clouds and willows in its mouth, and travels dozens of miles back and forth to the pond to carry mud to stick to its nest. Trip after trip, back and forth, finally reached a solid nest; magpies also circled back and forth in the dense woods, looking for small sticks. When they found them, they picked them up with their mouths, like Jingwei filling up the sea, and smashed the small sticks. He held the stick in his mouth and built a nest on the tall poplar tree.

It rains or shines, and after hard work, the nest is finally built. Then I find some soft things and put them in the nest to make the nest warmer and more comfortable. No matter in the hot summer or the cold winter, they live in the nests they build to escape the heat in the summer and keep out the cold in the winter. Not afraid of storms, lightning and thunder, they are warm, comfortable and endlessly happy with their babies.

Little swallows and little magpies are strong men in life. They use their hard work and sweat to build their own homes. The cuckoo crows day and night, wandering about in idleness, leisurely and leisurely. When it's time to lay eggs, they lay the eggs in another bird's nest, and when the chicks come out, let the thrush feed its chicks. The poor thrush didn't know, it still thought it was its own baby. It wasn't until it grew up that it realized it was a cuckoo.

Baidu Encyclopedia-Cuckoo