Common Terns(Sterna hirundo) - Mid Air Altercation
Living so close to your neighbours and having a short temper can lead to a few altercations. Here we have two Terns having a slight dispute mid air. they usually just last a short while and things cool again.
Now imagine a colony full of these birds and a threat comes too close....they all take to the air as one to distract and try to drive away any threat to the nests.
One the far side of this lake is my local Heronry, who nest before the Terns return and happily catch food in the lake and fly back and forth. But as soon as these birds start to nest the Herons change there behaviour and will not fly out over the lake, preferring to fly along the far shore. The young Herons tend to learn the hard way.....