For wild sparrows flying home from outside, the most suitable way is to put them back into the wild. This is more conducive to their behavior and allows them to live freely.
I think if you want to feed a pure wild sparrow, you should have the following elements:
First, there is enough space. Wild sparrows have grown up in nature since childhood and are unrestrained. When I grew up, I suddenly came to a closed environment. I think most sparrows will feel bad.
Under such circumstances, as long as we put them in cages, it is equivalent to depriving them of their lives in disguise.
Many birds that grow in nature, after being kept in captivity and imprisoned, no longer eat or drink, and often use their bodies to hit the birdcage, just because of their inner desire for blue sky and freedom.
So if you want to feed a pure wild sparrow, you need to give them a free flying environment as much as possible.
Second, feeding wild animals in good faith, dealing with people too little, and having an innate fear of people. So when we feed wild sparrows, they will be very strange to us. Many times, they will take the initiative to avoid us.
It is very difficult to establish such a trust relationship. This is not a one-time event. Many times it takes a long time to get along, so that sparrows can adapt to the new environment and get along with us.
If you really want to raise sparrows, it is not recommended to start with adult wild sparrows; The best way is to raise sparrows from their infancy and let sparrows adapt to the life of caged birds.