What kind of bird is this? Let's see.

Rhododendron is a typical bird. It doesn't build nests, hatch eggs or feed young birds. All these jobs were done by Xiao Du Fu's adoptive parents. ? At the turn of spring and summer, female cuckoos will carefully look for the nests of birds such as thrush and reed warbler before laying eggs. After the target is selected, she will make full use of the similar characteristics of herself and similar raptors in shape, size and body color to fly long distances. The flying posture of cuckoo is also very similar to that of raptor rock harrier; Fly very low, turn sharply to the left and right. Occasionally flap your wings loudly to scare the brooding birds. When the hatching bird saw the figure of the bird of prey flying at low altitude, it was scared to abandon its home and flee for life, and the cuckoo achieved the purpose of intimidation.

Du Fu openly laid the eggs in the nest of his choice, and then carefully put them among other birds' eggs with his beak. Before laying their own eggs, cuckoos often try their best to get other people's eggs out of their nests (eat or throw them away).

The cuckoo is many times bigger than some birds, but it lays very small eggs. In addition, the cuckoo's eggs are strikingly similar in shape and color to those in its chosen nest (the result of natural selection is so chaotic that other birds are deceived). Although the cuckoo's eggs are small, they develop rapidly and often hatch earlier or at the same time as the nest owner's eggs. Little cuckoo began to "do evil" as soon as she was born, supported by immature wings, and climbed to the nest carefully. It lowers its head, puts its forehead on the bottom of the nest, and pushes its foster mother's young (or bird's eggs) out of the nest. Then he killed all the other little guys. When the foster mother came back, she knew nothing about what the little cuckoo had done. She saw that there was only one chick left in the nest, so she loved it as her pet and carefully nurtured this little cuckoo. Little cuckoo plopped, left without saying goodbye and flew away.

Although cuckoo has a bad habit of brooding, it is a famous bird that loves the enemy of pine trees, Dendrolimus punctatus. Dendrolimus punctatus is a pest that many birds don't like to eat, but Rhododendron prefers its delicacy. It is observed that a cuckoo can prey on 100 caterpillars every hour. In addition, azaleas also eat other agricultural and forestry pests, so people also call them "forest guards".