Where have they gone?

[JeanneDavison]

This has been such an exciting year for me and my husband when it comes to our colony of Purple Martins. Living on Lake Conroe in Willis Texas we had about 75 this year...this is our 15th year and we have 5 sets of the SUNSET INN houses. While we still have some babies left we have noticed we only have about 10 of our Martins still here...where do they go ? We have heard of the merge in Austin Texas before migrating back to South America for the winter...where are my Martins now until then or are they already in Austin awaiting the time to leave in late July? https://www.youtube.com/watch?v=AG9ktu6p4t4&t=1s