So they weren't quite 'angry birds' but yesterday's nasty Nor'easter seemed to make a group of Chipping Sparrows that were visiting our feeders awfully grumpy. They refused to share space. They kept attacking each other. And they had it out for any other poor bird who was just trying to get a snack. Right after I took this, the sparrow on the left went after this poor Nuthatch even though it is pretty obvious he is minding his own business.... I don't know what their problem was. It's not like they have to shovel! ;-)