They are born in a blue/green egg get fed worms, find worms themselves. Avoid being eaten by bigger birds and those pesky cats. Poo on the occasional by-stander. In China maybe be served on a stick, and garnished with a tasty sauce. They can either die from old age and rot in your house. Be killed by a cat and rot in your house. Be killed by a kestrel and stink out your garden. Or they can be splattered on the road and create a nice pate, then the wonderful cycle starts again.
You can destroy it or put it back where it came from. Since house sparrows are not native they are excluded by the migratory bird act.
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Sparrows originally came from China. But, the climate started to change, and the sparrow migrated to North America. Today, the climate in China is slowly changing, but there is still very little sparrows there. (About 2%)
Passer domesticus
Omnivore
the house sparrow nest has three to six eggs
Yes, it is extremely common.
The House Sparrow is monogamous and mates for life .
No one can predict such things
People.
When competing for nesting cavities house sparrows often attack other birds. They attack bluebirds by pecking at their scalp. They often break eggs or kill baby birds.
Usually a length of 16cm and a weight of 27g