This book presents a summary of the status of those species which now occur, or have previously occurred, within the boundaries of Sonoma County and its adjacent offshore waters. It includes seasonal distribution (a calendar graph accompanies each species account), relative abundance, and habitat occurrence for each species. A thorough review of pertinent ornithological literature has been conducted to obtain the majority of this information. Citations of dates, locations and observers, with a graph of abundance, plus 25 local birding locations.