A good chance I have walked by them 100’s of times. The freeze in place like a rock. And are invisible.
Look away, maybe change a setting or peep at the screen, gone.
This is probably only the third time I have seen one. Most in the same spot. Hidden away from the swamp/marsh but still in a wet lowlands.
I don’t know how they move with that beak. Almost as long as the rest of their body.