Cuckoos always give birth from their nests, and when birds find out that they have cuckoo chicks in

When it comes to birds that people love and hate, cuckoos are definitely on the list. On the one hand, he feeds on insects, which is famous for feeding some pine caterpillars, poisonous moths and other pests that many birds dare not eat, but it is a delicacy for cuckoos. But on the other hand, the cuckoo is also a cunning bully in the animal kingdom, and it is a model for teaching Nestle, which is simply notorious.

Why?

Clause. 1. We all know that the reproduction of birds is basically inseparable from nesting and nurturing young birds, but the cuckoo is an exception, he is only responsible for laying eggs, and the eggs are laid in the nests of other birds, and then he will be the shopkeeper, let other birds help hatch and nurse the offspring. We call this kind of behavior nest parasitism, which in layman's terms is to give birth to children by the court.

The host bird most frequented by the cuckoo is the reed warbler's nest, which is so small that the cuckoo chick resembles a giant baby when it is in their nest. Perhaps due to the elite, the cuckoo chick also inherits its essence after birth. If they are born first, the young birds will push out the eggs of their hosts one by one and break them outwards in order to obtain all the food of their adoptive parents, thus excluding dissenters.

Clause. Second, this situation does not happen every time, I believe many people will wonder, can't the mother bird distinguish her own children, can't she recognize that she is raising someone else's offspring? So far, zoologists have found the eggs of cuckoos in at least 125 different bird nests, including Lu Ying, magpies, shrikes, hum jilin, etc., and the eggs of these hosts are mostly similar to the eggs of cuckoos.

It can be seen that the cuckoo bird does not choose its host at random, but determines the host at the time of egg laying through the similarity of the eggs, trying to confuse other bird mothers to help feed them.

Clause. 3. However, sometimes birds will recognize the cuckoo's chicks, but this process is usually before the eggs hatch. With the memory that birds will distinguish cuckoo eggs by their color and shape, once they are found, they will be simply removed.

All along, the host bird and the cuckoo are engaged in a game, which is reflected in the fact that some vermilion birds will use their own judgment to remove the excess eggs when they find that the number of eggs in the nest is not right. In order to increase their own success rate, the cuckoo bird is also trying to develop more successful methods to trick the memory bird, and this situation actually means that both parties are assisting in the purification. Some experts believe that there are not many birds parasitic to cuckoo birds, and this method will not only not damage the ecological balance, but also help to accelerate the evolution of species to a certain extent.

Of course it will, so that you can ensure the smooth birth of your child. In this way, you will be able to grasp the time.

It will hurt, and other birds are also very protective of their nests, and they will be ruthless when they see chicks that are not their own kind.

Generally, not. The cuckoo bird mimics the eggs of many species of birds by "mimicking", and by changing the color of its eggs, it becomes "real"! For example, a rhododendron that focuses on a grass wren's nest will lay more brown eggs, while a rhododendron that focuses on a reed warbler's nest will lay more green eggs in a bird's nest.

The cuckoo is actually a very domineering bird, the cuckoo does not build its own nest, and even after laying eggs, it will be placed in the nests of other birds for incubation, especially when the pregnant cuckoo is about to lay eggs, it will look for the nests of various birds everywhere. The cuckoo is also very smart, it will look for some nests with eggs to lay eggs, after laying eggs, the cuckoo will take 1 or 2 eggs from the nest when the mother bird is not paying attention, so that the number of eggs in the nest does not change.

Cuckoos will put their eggs in the nests of other birds, and then mix together, which looks very similar on the surface, and if you don't look closely, you really can't see it, so there are many bird mothers who don't know that their eggs have been replaced, and still work hard to hatch these eggs. But under the hatching of the mother bird, the first to emerge from the shell is often the cuckoo's child, and the baby cuckoo is also as domineering as its mother's temper, and will snatch the food of the mother bird as soon as it is born. Even, they will go to squeeze out other eggs in the nest, and some of the hatched birds will not be able to compete with the little cuckoos, and will eventually starve to death due to lack of food.

However, some mother birds still think that the baby cuckoo is their child, and think that it is their own flesh and blood, so they also take care of it wholeheartedly in terms of feeding. As the baby cuckoo grows bigger day by day, the mother bird also has to catch more food to feed them, but in the end, the baby magpie will grow bigger than the mother bird, and when the feathers are full, the baby magpie will fly away.

Most birds don't kill these young, although some mothers are not sure if they are their own children, but they do not dare to risk killing them, because if they kill the wrong ones, they are likely to hurt their real children. Of course, this is not absolute, there are some birds that are relatively large, or have a domineering personality like cuckoos, and cuckoos are not allowed to send their children down to their nests, of course, if they are discovered, they will also kill and drive them away.

No, this kind of way of occupying other people's nests is only made by the cuckoo, and the other birds will not kill them even if they find it, because those birds have their own nests, and they do not dare to poison the cuckoo.

Other birds don't choose to kill even if they find it, because most birds can't tell if it's their own child, but this practice of cuckoo birds is really annoying.

Most of them won't. Because of the cuckoo himself, after he gave birth, he would take care of it in time and feed his baby. And the other birds can't bear to hurt them.

Sometimes cuckoo eggs can be recognized, and in the documentary "Wild Austria", a reed warbler found that the cuckoo laid its eggs in a nest made by herself, so she pecked the cuckoo's egg with her beak. However, it is rare for "cuckoo eggs to be unrecognized, but hatched cuckoo chicks to be recognized", on the contrary, it is the cuckoo chicks that kill the biological children of their adoptive parents.

Cuckoo. If it doesn't make a nest, why does it lay its eggs in other birds' nests? Because of habit. Rhododendron will use this opportunity to bring eggs to the nests of other birds, such as willow warblers and gorse.

and the shrike bird, and place one in the nest. The reason why cuckoos want to lay eggs in other nests is actually a very clever method. This is because it takes a lot of energy for mother birds to hatch eggs and feed their young, and because nature does not have enough energy, it is good for other birds everywhere, that is, they are too lazy to build nests, so about a third of the cuckoos have the habit of "parasitic nests".

The so-called "nest parasitism" of cuckoo parasitic eggs refers to the deposit of cuckoo parasitic eggs in the nests of other birds.

Incubated by the host. After hatching, it does not make baby cuckoos.

Grows larger, but also pushes other birds out of the nest, leaving no host bird behind! The owner's mother bird is also "stupid" and will mistakenly think that the baby cuckoo is the only bird that can survive. The mother bird knows that the mother of the mother bird will put the baby in the nest of other birds after giving birth.

To survive, the cuckoo will throw all its eggs into the same nest and grow only one. This behavior of the cuckoo is not an instinct for nesting. Cuckoos do not usually build nests, incubate eggs, and build nests.

They will put their eggs in other nests so that they can save a lot of energy and have the ability to produce more eggs. It is parasitic in other nests, so the success rate of egg reproduction is higher. Why do cuckoos lay eggs in other nests?

Even today, cuckoos come to the south from Sichuan. They dress like birds and herpes.

They are dark in color and have a small crown on their red mouth. They cry in the spring and at night. They cry north at night, especially in summer.

They work day and night to feed the cuckoos until they are old enough to have only their bodies left. Or are their eggs in other birds' nests? Birds keep their eggs in the nests of other birds, and other birds take care of them.

The practice of burial is not good, but it is a famous bird that likes to eat caterpillars.

Nature pays attention to balance, so even if the female cuckoo lays eggs in other nests, these birds cause a lot of losses to the bird family, and in the process of ** azaleas, there are some single "digesters" who look for nests and parasitic eggs in the same species.

Cuckoos do not make nests, but lay their eggs in the nests of other birds, because cuckoos have an instinct to find other birds with similar habits to their own and then parasitize their nests. This behavior is known as nest parasitism.

By nest parasitism, cuckoo birds can save a lot of energy because they don't need to build their own nests, hatch eggs and take care of young birds. In addition, eggs that live in other nests have a higher reproductive success rate because cuckoo birds have a short incubation period and tend to hatch first, so they can get more food and have a higher survival rate.

In general, through the instinctive behavior of nest parasitism, cuckoo birds are better able to adapt to the environment and improve the reproductive success rate, so as to ensure the reproduction of their species.

I think their behavior is real, and the reason why they do it is entirely because they don't have the ability to raise their own children, and they have to put their own children in other people's nests for all their words.

It's true. In order to ensure their own nutrition, in order to ensure the acquisition of nutrition, but also to make their body healthier, in order to supplement nutrition. That's why they behave like this.

The nest parasitic behavior of cuckoos is real. Probably because they don't have time to raise them, they don't have birds to build nests.

Cuckoos do not build nests and lay their eggs in other birds' nests, which is only part of the phenomenon. According to scientific research, only one-third of rhododendrons have nesting parasitism.

The cuckoo bird is a common name for the birds of the rhododendron family, mainly the great cuckoo, the three-voiced cuckoo, and the four-voiced cuckoo, which mostly inhabits the woods in tropical and temperate regions. About two-thirds of cuckoos, including all species in North America, nest and nurse their young; Only about one-third of cuckoos raise their young in a parasitic way.

Nest parasitism is a special reproductive behavior in which birds lay their eggs in the nests of other birds, and their prosthetic parents incubate and brood on their behalf. The great cuckoo is one of the more typical of the more than 80 species of nest parasitism, and it can parasitize its eggs in the nests of 125 other species of birds. The nest parasitic behavior is manifested in the selection of hosts, and the large cuckoo looks for hosts similar to the hatching and brooding stages during the breeding period, the nestlings have basically the same feeding habits, and the ovoid shape and color are easy to imitate, and most of them are passerine birds.

<> "How do birds react when they find a chick with a cuckoo?"

There are many ancient verses that come to mind about the cuckoo bird, so many times it is an animal that lives in books, giving people a very distant beauty, but thanks to its call, it also has a "common name" - cuckoo, which is a bird that is familiar to the public.

This behavior of cuckoos is called nest parasitism, although this is not exclusive to them, and about 1% of birds exhibit nest parasitism. In addition, not all cuckoo birds do this, and about two-thirds of the cuckoos that are known to build their own nests and hatch and nurse their offspring.

Their only criterion for choosing a host is the "similarity of the eggs", and the eggs of the host bird must be very similar to theirs, so in general, a female cuckoo will only lay eggs in the nest of one host bird.

However, this is the most extreme case, and it is generally only when it encounters a small bird like the reed warbler, and it is estimated that if it does not do this, it will be difficult for the reed warbler to feed this "giant baby". Crows are also their typical host birds, but the eggs in the crow's nest are not pushed out of the nest by the cuckoo's hidden cubs, and the crow and cuckoo are more in a symbiotic relationship.

The cuckoo never builds a nest, but puts its eggs in another nest and asks the nest owner to hatch it for them. The cuckoo lays its eggs on the ground, and then goes to the vicinity of the willow and shrike nests to peep at the movement. If it sees the owner of the nest leave, it jumps up, puts its own egg in its mouth, and then takes the owner's egg from the nest.

The movements are swift and neat, and they can be completed in less than a minute. It takes stolen eggs to secluded places as a delicious meal. After the nest owner flew back, he found no abnormality and continued to incubate the eggs.

The cuckoo usually lays eggs, and its eggs develop faster than other birds' eggs, and in about a few days, the baby cuckoo will burrow out of the eggshell and then push the eggs of the nest owner out of the nest. In this way, the little cuckoo can enjoy the upbringing of "righteous parents" exclusively. The little cuckoo has to eat a lot of insects every day, and its "righteous parents" are busy feeding it all day long, that is, they don't know that their biological children are killed by the little cuckoo, and it is hard to feed a "**".

The righteous relatives finally fed the little cuckoo until the feathers were full, and when they could fly, this little thing without plot left the poor righteous relatives and walked away.