It had never occurred to me there might be a resting platform in the brush behind the main rookery trail. I think we just assumed it was too dry and just thickets. We always check along the water edge.
Hindsight says; they want to get sun dry, thickets contain food, nobody will bother them. And (below) I’m the big guy so I have first call!
When the spring green starts his spot will be invisible again.