I would say this is a ‘flock’ of Wood Storks.
But of course it’s not that easy. A group of storks is called a ‘Muster’.
So, above is a Muster taking advantage of the dry marsh. Easy fishing and a dry place to stand. Usually this is all under water, a meter deep maybe.
What’s the chance of me remembering ‘muster’ a month from now LOL.