There has been a lot of this in the sky lately.
I have to say that most of the time they are not headed South.
Not directly anyhow.
Do you know why one side is always longer than the other?
"There are more birds on that side !"
Around here , we call that a "JOEISM"
My brother in law is always coming up with stuff like that.
"Pretty bad Joey"
My answer is that "Geese can't count."
I "googled" it and didn't get much of an answer.
There is less draft the further back you are in line (makes sense)..
all flap their wings in unison.
Linking with Stewart - Wild Bird Wednesday