How many litters does a sparrow have in a year, and what is the average lifespan of a sparrow?

Sparrows breed in the north every year from March to April. During mating, there is a "marriage scene" behavior, when the male bird appears to be particularly active, and often uses a low, weak call, while raising his head and tail, looking around, standing restlessly, and also causing other males in the group to participate. It was particularly noisy for the birds; Sometimes, when the cry is being aroused, it often suddenly quiets down and flies away a few, or all of them, scattering the parties.

This completes the pairing process. The nest is made by both male and female birds, about 5 to 6 days, and then begins to lay eggs, which are laid between the early morning; One egg is laid every day, sometimes with an interval of one day. During the egg-laying period, the parent birds do not enter the nest overnight.

The number of eggs per clutch is generally 4 6, the minimum is 3, the rare 2 eggs (Xining), the maximum number is 8, and the most common is 5. The color of the eggs varies greatly, some are light brown, some are white and blue, and all are mixed with regular gray-blue, yellow-brown and purple-brown coarse spots, and the blunt ends of the eggs are particularly dense; The eggs are oval-shaped; Weight, the size of the egg is 15 pieces on average.

The hatching period of sparrows is 10 to 12 days, and it is also recorded to be 12 to 14 days. The nestling period is 10-15 days. The hatching time is mostly around 8 o'clock in the morning, the nestlings that have just hatched are bare and featherless, ** red with yellow, the eyes are not opened, this is only about about the weight of the egg, lighter than the weight of the egg; 4 5 days after the eyes are opened, the feather area is basically formed, and the feather sheaths of primary and secondary flight feathers and small wing feathers are born; The average weight is 19g, which is the highest weight in the chick stage, and it can be identified as a sparrow chick from its appearance; days, the weight drops, equivalent to the weight of the day, but the body length is increasing day by day, until it tends to stabilize, at this time the body length has reached 110mm, the body surface has developed and shaped, some chicks begin to leave the nest, some fly out of the nest one day apart, after the chicks fly out of the nest, the same night is different to enter the nest overnight.

The number of times sparrows breed each year varies according to the different climates in the north and south of China. A maximum of 3 reproductions have been recorded in Hebei Province, 4 times in Guangzhou, and 2 (or 3 times) in Jilin Province (the first litter is hatched in late May, and the second litter is hatched in July). The Tibetan Plateau is only 1 2 times.

The sparrow doesn't seem to recognize the nest.

Sparrows can give birth to a nest in January, and they are very individual, laying one egg in January, two eggs in February, and three eggs in March. . . That's it.

The lifespan of a sparrow is generally about 10 years. Sparrows are a genus of sparrows in the family Ornithidae.

A general term for small birds, which are smaller in size and similar in color. Generally, the plumage is brown and black spots, so it is commonly known as sparrows. Sparrows are lively, bold but vigilant, often nesting in tree cavities, except for the breeding stage, they usually live in groups, sparrows have a wide range of distribution, and the lifespan is about 5-10 years.

There are a total of 27 species of sparrows.

The habits of sparrowsSparrows are mostly active in places where there are human beings, and are extremely lively, bold and approachable, but they are very vigilant and curious. They often nest in human houses, such as eaves, wall holes, and sometimes occupy house swallows.

In the wild, nests are mostly built in tree cavities.

They can sometimes be found nesting in individual trees, however sparrows are flocks in all four seasons of the year, with old groups of trees with many holes, and are often their favorite nesting spots.

It's definitely not good, dare the sparrows go,

Sparrows do not live long, only about 10 years. The lifespan of birds has a certain relationship with body size, the lifespan of small birds is about 5 10 years, the lifespan of neutral birds is about 20 years, and the lifespan of large birds can be more than 50 years. In conditions of lack of food, or when the weather is extremely cold, sparrows do not even survive for a day.

Sparrows that die naturally have a lifespan of about 10 years. Sparrows, which live in the south, begin to breed in March and April, and breed at least 2 litters per year, and southern sparrows breed almost every month.

Influencing factorsIn the wild, there are many factors that affect the lifespan of birds, for example, sparrows can live up to 11 years, but only about one in eight newly hatched chicks can live to sexual maturity.

So this average has brought the overall level down. Birds need nest protection for winter, for example, in a 0-degree environment, if there is no food and nest, it is estimated that they will not survive for 15 hours.

About a month.

Sparrows are omnivorous birds, mainly feed on the seeds of grasses in summer and autumn, and brooding mainly feed on insects that damage grasses, most of which are lepidopteran pests. Due to the successful protection of young birds by parent birds and the high fecundity, sparrows are more numerous than many species of birds, which makes them more likely to form finch infestation during the harvest season. In winter and early spring, sparrows feed on weed seeds and seeds of wild grasses, as well as a variety of foods discarded by humans.

Inhabits settlements and near fields. During the day, they forage for food and are within a kilometer range. Jump forward with both feet while moving on the ground.

The wings are short and round, not tolerant of flying far, and the song is noisy. Feeds mainly on cereals. When the grains are ripe, they fly to the fields in large groups to eat the grains.

During the breeding period, some insects are eaten and the insects are used to raise their broods. Strong fecundity.