Tamron Test 7D @ 600MM
Did a lot more looking as I am going through all the files and found this one that was in good focus with good light @600MM using the 7D. It appears that it is able to deliver usable Eagle pics If you can get focus. This will be the last of the pics I am going to put with this lens for now as I still have a lot of work ahead of me. to put together some kind of objective opinion of this lens for those that might be interested.