Every year in March of the lunar calendar, that is, from April of the solar calendar, there is a kind of bird that everyone is familiar with in the north that will fly back. This is a swallow. Swallows have been flying around the house, looking for a suitable place to nest. Swallows will come to your house to nest, which is a good sign. Although the swallows are noisy and dirty the floor of the house, it is still recommended not to drive away the swallows, because after being driven away, they will never come to this house to nest again.
Characteristics of swallows nesting
Bird's nest is made of soil and grass leaves stuck together through swallow's saliva. What bird's nest fears most is water. If the eaves leak, the bird's nest will fall easily. It can be said that making a safe and solid nest is the survival instinct of swallows. Secondly, swallows don't like to nest in windy places. In that case, swallows can easily be blown away from their nests by the wind, which is not safe.
Swallows build nests to raise their next generation. The natural enemies of swallows are mainly cats, mice and snakes. High eaves can avoid these three animals well. Secondly, some naughty children also like to poke the swallow's nest, and the high eaves can prevent children from destroying the nest.