After a several year hiatus of working with a camera, I recently picked up photography again as a hobby. Shortly thereafter, I started gaining an interest in wildlife and birds, and began photographing them. When I asked several photographers which bird ID book to look into, they immediately mentioned Sibley.
While browsing through the shelves at a B&N brick and mortar store, I immediately understood why Sibley's book is so highly regarded.
There are several elements that really stand out in my mind
* The book is very well laid out
* Excellent, accurate illustrations detailing various characterstics among species, gender, etc
* Thoughtfully organized sections that make reading it a breeze, whether you are simply browsing for a bird ID or want to learn more by reading more in-depth.
* It's a managable size, that can be carried along, should you decide to take it in the field. I usually leave mine home, as I am usually capturing the bird on camera already.
* Although it's the Eastern North American field guide, there are species that can be found in the book from much further away. I can only assume they include everything that you "might" encounter out in the field, which is an excellent benefit.
Don't settle for anything less. Get the Sibley's book.