Building a nest can’t be easy. Even when they appear to be just a pile of sticks. I watched this Great Blue Heron at Wakodahatchee Wetlands in Florida while he worked on his nest. (N.B. I have no idea whether this is a male or female GBH). He stared at the edge of the nest for what seemed like an eternity and then he grasped one twig in his beak and tugged and pulled a little and then let it go. He then proceeded to preen his feathers, apparently satisfied with the placement of the twig, although from my point of view, there was no change in the position of the twig. It must have been a Feng shui thing.