I’m not sure how many Great Blues have arrived. As expected the sudden cold, and snow, chased a few off.
This rookery is old so tree damage changes things. Several of the islands just don’t have the branches needed for big nests anymore. However, off in the second swamp nearby several new nests have been started.

This Great Blue made a few trips for sticks but I never did get a good spot. Before I settled in he flew off into the wood line and never came back. I did get a few images, not sure if it was different birds or one that had no plans.