Several pairs of Great Blue Herons are working on nests around the pond, gathering and arranging sticks in a labor intensive effort.
There does not seem to be any sense of urgency to get the nests completed. The males tend to take long breaks between stick trips, taking time to look around and show off their breeding plumes.
The female below appears to be laying on eggs and didn’t get up when her mate brought this nest contribution. Their nest looks pretty substantial already and she did take the stick and found a spot for it.