When they are ready to head south their in their prime. They have lots of character and such a pleasure to watch.. I know as I have followed them since they came in the spring. I watch all aspects of there cyle. From breeding to the young and growing up. They should be out of here by the end of October. I took in the the thousands of photos of them durning this season. Please read the description if you have the time, I know you will learn alot about them...Ron