The barn swallow’s global population is estimated at about 290,000,000-500,000,000 individuals, 20% of which can be found in Europe.
Barn swallows continue to be widespread and common throughout their range. The barn swallow’s global population is estimated at about 290,000,000-500,000,000 individuals.
The European population is estimated at 29,000,000-48,700,000 pairs, which equates to 58,000,000-97,400,000 mature individuals. Europe forms approximately 20% of the global range, so a very preliminary estimate of the global population size is 290,000,000-487,000,000 mature individuals, although further validation of this estimate is needed.
National population estimates include: c.10,000-1 million breeding pairs and > c.1,000 individuals on migration in China; c.10,000- 100,000 breeding pairs, > c.10,000 individuals on migration and c.1,000 individuals on migration in Korea; c.10,000-1 million breeding pairs, > c.1,000 individuals on migration and c.50-1,000 wintering individuals in Japan and c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Russia.
The barn swallow has undergone a small or statistically insignificant decrease over the last 40 years in North America. Trends for the European population between 1980 and 2013 have been stable, however, the European population size is estimated to be decreasing by less than 25% in 11.7 years, or three generations.