Well, they've arrived.
We call them the cacophony - a large flock of migrating red-winged blackbirds and other birds that land in our oak trees and the large maple tree. While sitting at the tops of these trees, they sing their songs...all at once...and not synchronized. Wow.
Every once in a while, something spooks the whole flock. They stop singing and in the relative silence you can here the 'whoosh' of their wings as they take off.
Just thought you'd all like to know.