Butterfinger, our Norwich Terrier, used to sit on the window sill to watch the dogs and passersby. She loved it. Sometimes she barked, but mostly she just made us feel guilty enough to take her for another walk.
From now on there will be no more dog watching for her. We have moved and our new apartment does not have a good “viewing” ledge. Butterfinger will just have do make do with frequent walks and oodles of space to make up for her window sill.