The swallow is one of a pair rearing chicks inside the barn in Angus Glens, North Dundee.
Wildlife photographer Keith Ringland captured the moment from a nearby shed. He believes the parents have worked out an entry- and exit system to avoid colliding at high speeds: "The swallow used a different, much bigger hole in the roof to leave the building," he told the Daily Mail.
Source: dailymail.co.uk