This is a barn swallow video from the USA.
From the Cornell Lab of Ornithology in the USA:
NestWatchers Needed For New Barn Swallow Study
We live in an incredibly well-lit world. All that wattage in heavily-populated areas creates a halo glow that brightens the night sky. Researchers at the Cornell Lab of Ornithology, Syracuse University, and Globe at Night are seeking participants for a unique new study. Scientists want to know what impact all that extra night light might have on the circadian rhythms of life using Barn Swallows as their subjects. Barn Swallows have adapted to live near humans and nest almost exclusively on structures such as bridges, homes, and yes, barns. Volunteers can sign up through NestWatch.
“Specifically, we’re hoping to learn if the artificial light has an effect—good or bad—on what we call the ‘pace of life,’” says Cornell Lab of Ornithology researcher…
View original post 233 more words