Do swallows have a feeding habit? Are swallows mammals

So far, it has not been possible to find any animal in nature that feeds back, and crows are no exception. However, ornithologists have observed that crows are social birds that live in groups, and that some of the newly grown crows in the crow flock help other adult crows to nurse their young. It is not impossible for the old crow to eat food by chance when the new adult crow feeds the chicks.

And not only the crows.

Studies have shown that among the birds, kingfishers, bee-eaters.

Lin Daishengke, Wren.

Subfamilies and robins have nest helpers to contribute to breeding two-parent families. It can be seen that the "crow feeding" is not necessarily the little crow is filial piety to his parents, it is very likely that the elder brother and sister are helping the crow's parents feed the younger brother and sister.

A recent study shows that some birds choose not to reproduce themselves and instead work to protect their close relatives' nests from encroachment when their populations are under pressure from "nest-parasitic" birds.

Australian National University.

Researchers from other institutions reported in the new issue of the American journal Science that about 9% of birds have this phenomenon of "giving up their small homes for everyone". Why they do this is curious, and the researchers have found that the geographical distribution of birds with this trait is highly correlated with the distribution of some "nest parasitic" birds.

"Nest parasitic" birds refer to cuckoo birds.

Some birds lay their eggs in the nests of other birds, and other birds incubate and brood them on their behalf. For parasitic hosts, they often lose entire litters of their young.

Some cuckoos choose to live in the nests of crows, such as the four-voiced cuckoo, which is very fond of the grey magpie.

Medium-sized birds of the crow family) as a host, and are widely distributed in southern China.

It also nests with parasitic crows, magpies and red-billed blue magpies.

etc. in the nest.

In order to reduce the chance of being "exploited", host birds live in large groups and have a much higher success rate in self-defense than a couple. Some of these birds took the initiative to defend themselves against foreign enemies, giving up the opportunity to give up their own children. However, because most of the inbred they help are inbred, their own genes can also be passed on through the offspring of these close relatives, a strategy known as "cooperative reproduction".

Perhaps because of this, the ancients came to the conclusion that "the crow feeds back". In addition, the cuckoo that successfully parasitized the crow's nest is larger than the crow, and it is not impossible for the ancients to mistake the crow for the "crow parent" if you don't look closely.

I have really seen the phenomenon of swallow feeding, and I understand it this way, not that the old swallow can't find food, but whether the food found by her children can be eaten or not. Animals, like people, have a mother's love as big as the sky!

No. It is rare to live to the day when they are old and can not hunt, living in the wild, it is easy to cause diseases or ** food due to aging and weakness, and when it can't run, then it will be targeted by other animals and killed by its hunters!!

Swallows have the habit of feeding, this is their nature.

The sheep has the grace of kneeling milk, and the crow has the meaning of feeding, it should be a crow, not saying that the swallow has the habit of feeding, I hope it can help you.

Summary. Hello, dear, happy to answer for you : Is the swallow a mammal dear, the answer is:

Swallows are not mammals. Swallows are oviparous and belong to birds The main feature of mammals is viviparous, swallows are obviously not viviparous, so they do not belong to mammals, I hope mine can help you

Are swallows mammals

Are swallows mammals

Are swallows mammals

Hello, dear, I am happy to answer for you: Are swallows mammals, dear, the answer is: Swallows are not mammals.

Swallows are oviparous and belong to birds and mammals, and the main feature is to talk about viviparity, and the chain swallow is obviously not viviparous, so it does not belong to mammals, I hope mine can help you

Hello, dear. Swallow is a collective name for 74 species of birds in the passerine family Swallowidae. The shape is small, the wing tips are narrow, the tail is concave and the beak is short, the feet are weak, and the feathers are not too much.

The feather coat is monochromatic, or has a metallic blue or green sheen; Most species are similar to both sexes. Swallows spend a lot of time in the air to catch pests, and are one of the most flexible passerine species, mainly feeding on mosquitoes, flies and other insects, and are well-known beneficial birds. Nest in tree holes or crevices, or burrow in sandy banks, or stick mud on the walls or protrusions of corridors, roofs, eaves, etc. in urban and rural areas.

3 7 eggs per lay. Kiss, I hope mine can help you