Why don t cuckoos make nests? Why don t cuckoo birds make nests

The yellow-billed rhododendron, which breeds in North America, is nested by husband and wife. Since females lay 10 eggs per breeding period, the interval between eggs is so long that it often leaves chicks and newborn eggs mixed in the same nest. Feeding the chicks leaves the female no longer in mind the incubation of the eggs, but she has to finish laying the eggs.

As a result, the yellow-billed cuckoo has contracted the "bad problem" of storing eggs in the nests of different species of birds in its neighbors.

The female of the cuckoo will stay near other nests after fertilization, and when she sees other nests incubating eggs, she will secretly lay eggs in their nests. The eggs of cuckoos have a shorter incubation period; Cuckoo chicks grow fast and have an instinct to squeeze or push the eggs or chicks of the host house out of the nest. Cuckoo birds, they only mate, they do not make nests, and they do not nurse their young.

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1. The female cuckoo is to prevent the child from being eaten by the greedy father, because the male cuckoo eats the eggs just laid;

2. The female cuckoo lays an average of 15 eggs per year, but the interval is very long, generally from the moon to July, so even if it has time to hold the nest, but there is no effort to feed, the first chick should be fed, but the second egg has just hatched, and the next dozen eggs do not know how to deal with it.

The eggs laid by cuckoos are small and vary in color.

It is said that the principle of finding a nest for a female cuckoo for her offspring is that it can distinguish it from the eggs of the owner of the nest. Usually when the eggs are about to be laid, the female cuckoo will be in a bird's nest. If you are lucky, while the owner of the nest is out foraging, he will lay eggs directly into the nest in broad daylight.

If this is not possible, it goes down to the ground and is carried to its "new home" with its beak.

Of course, if it's fair, not all cuckoos abandon their children. For example, there is a species of cuckoo in the United States that builds nests collectively, and several females lay eggs, and then everyone takes turns to hatch them. There is also a type of cuckoo in which males and females build nests together, hatch eggs and feed their chicks together.

The cuckoo is also to let their own children better adapt to life, from the mother's point of view, the cuckoo's performance is actually a mother's love!

Why do cuckoos put their eggs in other nests?

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Analysis: There are about 50 species of cuckoos in the world that lay eggs in other species of birds' nests, and this phenomenon of nest parasitism has given the cuckoo a bad reputation of "unwilling to raise biological children".

There are individual "lazy people" in the same species who find nests to parasitize and incubate eggs, and the reputation of the entire population is ruined.

The yellow-billed rhododendron, which breeds in North America, is nested by husband and wife. Since the female lays 10 eggs per breeding period, the interval between the laying of eggs is so long that the state often mixes the chicks and newborn eggs in the same nest. Feeding the chicks leaves the female no longer in mind the incubation of the eggs, but she has to finish laying the eggs.

As a result, the yellow-billed cuckoo has contracted the "bad problem" of storing eggs in the nests of different species of birds in its neighbors.

There are also cuckoos that never build nests. Seeing that other birds have superior housing conditions, they will go to "occupy the nest as the king". This immorality has prompted them to rediscover the feeling of "being a parent of a bird" through their personal experience of incubating eggs and feeding chicks.

Africa is home to a species of giant spotted cuckoo, which is adept at choosing a "nanny" to incubate its eggs and feed its chicks. Once the feathers are full, the giant spotted cuckoo will take its children away from the "nanny" and raise their offspring according to a fixed pattern.

The cuckoo living in Russia has received selfless assistance from 150 species of birds in giving birth. But each nest only fosters one egg. They are good at choosing birds that are similar in size and color to their own as the "best candidates" for their adoptive parents and adoptive parents.

The foster care process must be unaware, otherwise it may be misleading - being thrown out. The baby cuckoo hatched by the adoptive parents is similar in shape and voice to the children born to the adoptive parents. This greatly increases the safety factor for them to be placed under the fence.

Cuckoo birds do not make nests mainly because they are afraid that the gluttonous male cuckoo will eat the eggs. The female cuckoo lays eggs at a very long interval, and when the first chick is born and needs to be fed, the second egg has just been laid, and there is no time to hatch, and in order to prevent the male cuckoo from eating the eggs, the eggs can only be sent to the nests of other birds.

The cuckoo bird is a common name for the cuckoo family, and the common ones are the big cuckoo, the three-voiced cuckoo and the four-voiced cuckoo, which belongs to the forestry beneficial birds.

Cuckoos usually do not make nests or incubate eggs, but place the eggs laid by the ridge in the nests of thrushes and reeds, and let these birds hatch for their self-contained keeze.

About two-thirds of the rhododendrons nest and nurse their young, while the rest raise their young in a parasitic way.

Cuckoo birds do not make nests mainly because they are afraid that the gluttonous male cuckoo will eat the eggs. The female cuckoo lays eggs at a very long interval, when the first pure chick is born and needs to be fed, the second egg has just been laid, and there is no time to hatch, and in order to prevent the male cuckoo from eating the eggs, the eggs can only be sent to the nests of other birds.

The cuckoo bird is the common name of the cuckoo family, and the common ones are the big cuckoo, the three-voiced cuckoo and the four-sounded cuckoo, which belongs to the forestry branch shed bird.

Cuckoos usually do not make nests or incubate eggs, but lay eggs in the nests of thrushes and reeds and let these birds hatch for themselves.

About two-thirds of the cuckoos nest and nurse their young, while the rest raise their young in a parasitic way.

1. The cuckoo bird does not make a nest because of the potato field, which is its survival method and part of nature.

2. The cuckoo bird is a common name for the cuckoo family, mainly the great cuckoo, the three-voiced cuckoo and the four-voiced cuckoo. One-third of rhododendrons have nest parasitism. It belongs to the forestry beneficial birds. There are many poems and songs about the cuckoo, and the most typical allusion is the story of the cuckoo turned into a cuckoo.

3. Nest parasitism is a special reproductive behavior in which birds lay their eggs in the nests of other birds, and are incubated and brooded by their righteous parents. The meadow pinker (Anthus pratensis) fed on the large rhododendron shown in ** is an example of an interspecific nest parasitic type. 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.