Quote Originally Posted by HDNitehawk View Post
You just have to be closer. I have always thought my best bird shots came from when I was at or very close to the minimum focal distance and that distance is much closer with the 300mm than the 500mm.
Agreed.

I have not yet set this up myself, but I've been thinking about using shorter lenses, set them up so that they are manually focused on a perch with a deep DoF, and then using a remote trigger when a bird is approaching or at the perch. I've seen that technique used a couple times with great success but haven't yet done it myself.