As I have stated before in this blog, I am not your normal nature photographer. When it comes to bird photography this is especially true. I don’t stake out areas or otherwise stalk birds to get my shots. Rather, I walk a set route as close to daily as circumstances allow and shoot what comes my way. Nor do I lug around a mammoth 500mm lens capable of seeing a given bird’s teeth. Since I am usually also walking my dog, thus giving me only one hand with which to shoot, I have to travel light. This need for portability…