Does the sparrow need a nest?

Sparrows do not need nests, unless they want to reproduce artificially, it is very difficult.The sparrows in the wild usually put the nest in the eaves or wall holes, and it is relatively simple.There are many things for nests, such as grass, wool, feathers, etc.After doing a good nest, it usually produces eggs. A nest can produce 4-6 eggs. It is incubated by male and female birds in turns, and it takes about 11-12 days to incubate.