There were a remarkable (in my view) number of gang gangs around the trees this evening. This is site 81, where (around 7pm) there was 1 pair of gang gangs - female outside hollow, male up in the tree. Twenty minutes later, and there were around seven or more in the tree - four males, three females that I could count. A number of them then moved to some trees close by (next post). They were playful, hanging on pieces of bark and swinging upside down like cockatoos.