Rowan tree

The Rowan tree without berries. There´s not a single berry. So what are the birds going to eat this fall and winter? I hear that they have already eaten all berries in the yards. But Rowan berries were edible even as frozen. So now the birds are going to starve. The insectivores have starved all summer. I have not seen one single fly all summer. 
This is what this tree looked alike a year ago.
https://www.blipfoto.com/entry/3270831764787954390