Being new to this field, I have found this book of great value. I have encountered several other guides, and have to say without a shadow of doubt, this is the best. Each bird is alotted its own page, containing both photographs and drawings of top quality. There is a wealth of info on all aspects of the bird, including song, its individual style of flight, lifespan, breeding and much more.
Of particular use is a section at the bottom of each page offering photographs of similar species, to further ensure you can make a correct I.D.
Overall, a top buy, of top quality.