I saw a very strange thing while waiting at Blackwater for my train a few weeks ago.
A 5 bird formation of Cormorants in a very untidy V formation. Suddenly the lead bird pulled stright up, with the untidy formation following in the climb. They then all stalled out, recovered and were in perfect V formation! 😮
Not sure if this is just a random birdy thing, or a way to tidy their formation but it looked kind of neat.
I’ve also seen a 7 bird Cormorant echelon in a perfect `missing bird` formation. 🙂