I was not aware of how complicated their lives are! They are more than just a beautiful little bird!
The explanation of their irridescence was explained very clearly. I understand human vision better as well as a restult of that lesson.
Living in Virginia, I only have the opportunity to see the Ruby-throated HB. However from late April or early May through the end of summer we are blessed to have many of these beautiful little creatures visit our feeders on our back porch.