Norfolk is a birder's paradise. During the writing of ''The Birds of Norfolk'' in the late 1990s, it was very apparent that little detailed information was available on the distribution and, in particular, abundance of many of Norfolk's commoner birds. While ''The Norfolk Bird Atlas'' by Geoffrey Kelly, published in 1986, had provided data at a tetrad level on the breeding birds of the county, the only wintering survey was that undertaken for the 1981-84 atlas of Britain and Ireland, and that had been based on 10-km squares. By the end of 1999, a team of local organisers and an enthusiastic band of observers had started fieldwork on a new county tetrad atlas, which would survey not only the breeding and wintering birds of Norfolk, but also attempt to assess the abundance of each species. By the end of the summer of 2007, well over 300 observers had contributed, and every tetrad in the county had been visited in both summer and winter. The results of this undertaking are presented in this book, which brings together the distribution and abundance of all the species recorded during the survey, as well as highlighting the changes since previous atlases.There is a double page spread for each bird, covering over 270 species found in Norfolk, and shows summer, winter, and change maps. It is superbly illustrated by local artists and photographers.