I don’t see many Glossy Ibis and when I do they are out in a wide open marsh. So they pretty much see us coming and leave.
A few were traveling with Storks and Spoonbills who are not as shy as these Glossy. The Ibis hose to stay with the flock.
Their coloring is iridescent in the right light.
They have a small range in the US, most stay in Florida. Even Central America has only a few usual spots. The Glossy Ibis is more wide spread in Africa.
Of course the last few years all the rules have changed.