An excellent photo guide covering the southern half of Chile and Argentina, along with the Falkland Islands and the sub-Antarctic seas. Over 300 species are shown with multiple color photos of great quality. Another 130+ species have brief accounts in the appendix. Most birds have two pages of photos. Typically, there is one large (half-page) photo with another 5-7 photos showing the various plumages for gender, age, and subspecies. The text, in both English and Spanish, covers identification, habitat, range, and habits. The authors make a point to cover significant subspecies with many of the birds. While the identification section does give a good description, there is nearly zero mention of how the birds differ from their similar species. Even some brief notes on this would be helpful for groups like the canasteros, miners, and cinclodes. The range maps are done very well and show the outlines of the provinces in each of the countries. - from Amzon