EE and I went to the Office a couple of mornings ago.
As we were walking over the river bridge we were discussing the small number of Dusky Woodswallows that had nested in the area. And how they were now probably well on their way north.
When to our surprise, as much as anything, we heard the calls of them as hawked for insects in the sky overhead.
Like Choughs they are very community dependent, and its not unusual to see dozens of them sitting on the one branch all jostling for the best position. These are no exceptions. However with good grace the birds make room for one another, even if it means flying off and relanding.
They were still feeding young ones, so I concluded they must have had a late season nesting before the cold weather sets in.