mrjcall wrote:
Composition, including the rule of thirds, applies to all types of photography, including nature photos. With rare exception, placing your subject directly in the center of a photo extinguishes most of the dynamics/energy available to you.
That is if you have interesting surrounding material. In this case, there is a lot of uninteresting extraneous material. What's really of interest in this photo, and particularly nice, is the head and neck of the bird. Not every great photo in the world follows the rule of thirds.