Even more important to excellent bird photography than having the right camera is having the right lens. There is no point in purchasing that dream camera body and crippling yourself with a cheap lens. In the 8 years I've been leading digital photo safaris I've had the chance to use or at least see used just about every likely lens made for Nikon and Canon camera bodies and have plenty of hopefully useful thoughts to share with you:

We just finished another successful Texas Bird Photo Safari. I'll be writing more later in the week but since so many of you are curious about the Sigma 120-400mm Telephoto Zoom lens I wanted to let you know that it was a complete success.