I’ve always thought the hardest shots to take are of large flocks of birds.
Here Pelicans, but Egrets, Storks, or whatever are like putting chaos in a bottle.

No matter, something will be ‘less than sharp’. A few birds will look great, but others just in odd postures.

After years of practice I do have a proven method.
Hold the button down, point everywhere.

I’m sure all those ‘expert’ training classes don’t teach this. But really, you have minimal time and the odds are some will be great. Look at these shots, how bad could they be in some of the places we go.