If you read the article, you will realize that the flying itself is the least problematic part. It's sensing when the birds' mood is right, nutrition of the bi

If you read the article, you will realize that the flying itself is the least problematic part. It's sensing when the birds' mood is right, nutrition of the birds, sensing distractions and dealing with them, regrouping when the birds decide to not follow along,... It's a really difficult and complex undertaking that isn't solvable with technology.