They have apparently shifted their flight path. They've been flying over all day—seemingly buzzing the house. The only other time I've seen this many of them in one day was years ago when we lived in Marion. It's just as intriguing this time as it was then.
What made them choose today?
Why did they choose this path?
Are they all following the same flight path, or are there other groups taking other routes?
Where are they coming from—and going to?
I haven't seen anything about them in the news, so I have no answers for all my questions.
Private acrobatic cropduster planes?
Formations of military planes?
No...migrating Monarch butterflies, heading south for the winter! Very cool!