Why don't cuckoo birds do nests

The main reason for the rhododendron bird does not make the nest is that the male birds who are afraid of eclipse eat eggs.Some birds even eat the bird eggs just under the mother bird.Another reason is that the cuckoo bird's mother bird needs to produce about 15 eggs a year, but the time span of eggs is relatively large. When the first chicks need to be fed, the second egg is often born.over.It has no way to hatch eggs and feeds the young birds, so they do not make nests.

1. Why don't cuckoo birds do nests

The cuckoo bird does not make a nest mainly for two reasons:

(1) Gong Rhododendron's very brutal and greedy food, even when the female azalea just finished the egg, the Gong Rhododendron would eat the eggs.In order to prevent the male rhododendron from eating bird eggs, the cuckoo bird does not make a nest.

(2) The female cuckoo ranges 15 eggs a year, but the time interval is long.When the first chicks need to be fed, the second egg was just born.They have no time to hatch at all, and they can only send the eggs to the bird's nests of other birds and let other birds help them incubate.

Second, how to breed the cuckoo bird without making nests.

Rhododendron birds will not build nests, incubate eggs, and breed.Before spawning of female birds, they will be observed around the bird's nests of other birds.Once a bird goes out for food, the cuckoo bird bird will add eggs in the bird's nest of other birds, so that other birds will hatch it for it.And the cuckoo always born first, and launch all the other eggs in the nest to the nest to ensure that it is given a bird to feed it.

3. Is there a non -parasitic species?

Rhododendron birds have non -parasitic species.For example, Guila Rhododendron, which is mainly distributed in South America, will make nests by themselves and nurture young birds.Rhododendron is distributed in tropical and temperate forests. Two -thirds of the rhododendrons are non -parasitic breeding methods. Only one -third of the azalea is parasitic.