It is not easy for swallows to build nests, so when winter goes and spring comes, swallows will come back to look for the nests they used to build. Generally speaking, swallows will live in a nest for more than 2 years. Generally speaking, as long as the swallows living here are still alive, they will basically live forever.
But if you find that the swallow suddenly doesn't come to live for a year, what's the matter? Legend has it that swallows only nest in blessed places and places with harmonious families, so many people will worry that swallows will not come. In fact, according to the old saying in the countryside, generally speaking, swallows don't come to live, and it is very likely that something happened to the swallows in this nest during their migration. Swallows go to the south in winter and return to the north in spring. Such round-trip migration will encounter various problems. Partner? , went to another place to nest. In addition, there is another situation that the building environment of your home may have changed, making the swallow feel less? Is it safe? Yes, so change places. Finally, it is worth noting that even if the swallows didn't come this year, they left the nest. Maybe there will be new swallows next year, which happens from time to time!