It went over Poland territory so obviously it WAS aimed at Poland.
It wasn't. It was aimed at Ukraine and barely strayed over the border. It's far from the first.
I read that they put some birds in the air
They scrambled jets as is normal however there was little they could practically do. The objects were gone as soon as they appeared.
As an insult that doesn't work with Americans.
I've heard that the "c word" is less acceptable there than in the UK or AUS and tend to use it sparingly around Americans (while watching their discomfort when others use it).
I suspect many people from over there would be shocked to see old ladies in northern England with bibles in hand walking to church saying to each other "eeh, Ah've 'ad a cvnt of a week".