National Geographic Complete Birds of North America, 2nd Edition: Now Covering More Than 1,000 Species With the Most-Detailed Information Found in a Single Volume (Paperback) 5
National Geographic Complete Birds of North America, 2nd Edition: Now Covering More Than 1,000 Species With the Most-Detailed Information Found in a Single Volume (Paperback)
I enjoy this work because of its size enabling it to offer multiple illustrations, clear photos and distribution maps. Moreover, much of birds, including ducks, shorebirds, rapces, are also shown in flight, which helps a lot in identifying the field. The sub-species are described.
